21 Richest Billionaires In The World

18. Vladimir Putin

Facebook CEO Mark Zuckerberg talks about the new Facebook email service at an announcement in San Francisco, Monday, Nov. 15, 2010. AP Photo/Paul Sakuma)
Pavel Golovkin/AP

Rating: $60-70 Billion

The former KGB operative and current Russian president is said to have secretly amassed an enormous personal fortune thanks to successive investments in Russian companies, which all benefited from the country's growing economy.

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