But the USA born Brit said they "haven't figured out a way yet to kill me and get away with it".
"On a purely human level, he made a very good impression on me", Putin said.
Both Putin and Trump met during various global summits past year and Putin said that "I have no disappointment at all", When asked about meeting President Trump.
He also noted that he spent some time talking to Melania Trump when he sat next to her during an official dinner at the Group of 20 summit in Hamburg, Germany in July. I want to tell you so that the worldwide community knew this.
"I made some exaggerations", he said.
He has also downplayed conclusions by US intelligence services that Moscow interfered in the USA presidential election in 2016 and warnings that it will likely continue to do so.
Although he lavished praise on the president, Putin was not at all complimentary about American politics, because "it has demonstrated its inefficiency and has been eating himself up". "The ability to effectively work even in conditions of political provocations and economic subversions shows the sustainability and huge potential of the Russian military-technical cooperation system", Putin said.
Putin has betrayed increasing frustration over the growing standoff with the US, which has quashed hopes that Trump raised during his presidential campaign of turning a new page in ties between the two powers.
Oil prices fall as United States crude stocks rise
Brent was on track for a drop of about 0.1% this week, after last week's 4.4% slide. Inventories at the Cushing, Oklahoma, site decreased by 790,000 barrels this week.
Speaking about the bitter tensions in Russia-West relations, Putin said they have been rooted in Western efforts to contain and weaken Russia. "Without an effectively working economy, without a social sphere that creates the foundation for political stability, we can't talk about any greatness".
He also blamed the United States for what he alleged was its role ousting Ukraine's Russia-friendly president in February 2014 amid massive street protests.
Russian Federation responded by annexing Ukraine's Crimean Peninsula.
"Some numbers [of Russians] were to be exterminated and some other numbers would be used as laborers at assigned works, and those whom the Germans couldn't use as slaves would be resettled to the extreme North", Putin said. "Our plan on the nuclear weapon is to use them as a response measure", Putin said.
He made clear that if Russian Federation was under attack and faced being wiped out, then the world would not be worth saving. It will be a global catastrophe for the world.
In that case, "as the leader of Russian Federation, I have the right to ask the question, why do we need such a world if there's no Russian Federation?"
British Prime Minister Theresa May has backed moves to snub the World Cup in Russian Federation - if Kremlin links are proven in the Salisbury contamination scare. All Russian people can have a four-day leave this year.