After decades ruling oil-rich Libya, Moammar Gadhafi and his family have amassed billion of dollars in wealth around the world. They have used their fortune to buy into Italian soccer teams, and pay for private performances by American pop stars. Just how much is the brutal Libyan leader's family worth? The grand total is unknown, but it's clear that the Gadhafis' wealth is "astonishing." Much of it is sure to be taken away from the Gadhafis thanks to U.N. sanctions, but here, a brief guide, by the numbers:

$32 billion
Liquid assets worldwide that the Gadhafi regime controls, according to a January 2010 State Department cable released by WikiLeaks

$300-$500 million
Regime funds managed by each of "several" U.S. banks

$30 billion
Investments the U.S. has seized from the Gadhafi family. Canada and countries throughout Europe have also seized Gadhafi funds. "These assets appear to be just the tip of the iceberg," says The Daily Mail. "No one is yet certain exactly what the family owns around the world."

$1.7 billon
Gadhafi investments that Austria has frozen. Saif, Gadhafi's second son, has a luxury villa outside of Vienna and keeps his pet white tiger in the city's zoo.

$455 million
Value of the Gadhafis' "enormous portfolio" of properties in London's tony West End theater district

$325 million
Value of the Gadhafi stake in Pearson, the parent company of the Financial Times and Penguin Books

7.5 percent
Share of the Gadhafi stake in the Italian soccer team Juventus

2 percent
Share of the Gadhafi stake in Finmeccanica, Italy's largest defense and aerospace firm

$1 million
Amount singer Mariah Carey was paid to sing four songs for Gadhafi's son Muatassim in 2008 at a New Year's Eve party in the Caribbean. I was "naive and unaware," Carey has since said. "I feel horrible and embarrassed to have participated in this mess." Several other top entertainers performed for the Gadhafis over the years, including 50 Cent, Beyonce, and Nelly Furtado. Furtado promises to give away the $1 million she received. Beyonce says she donated her earnings to a Haiti charity.

$4.8 billion

Amount of his personal wealth Gadhafi reportedly secretly transferred to London last week, despite his vow to fight rebels to his "last drop" of blood

Sources: CBS News, Daily Mail, Finance Twitter, BBC News