Billionaire

A billionaire, in countries that use the short scale number naming system, is a person with a net worth of at least one billion (1,000,000,000; a thousand million) units of a given currency, usually major currencies such as the United States dollar, the euro, or the pound sterling. The American business magazine Forbes produces a complete global list of known U.S. dollar billionaires every year, and updates an Internet version of this list in real time. The American oil magnate John D. Rockefeller became the world's first confirmed U.S. dollar billionaire in 1916; as of 2015, there are over 1,800 U.S. dollar billionaires worldwide, with a combined wealth of over US$7 trillion.

Current U.S. dollar billionaires

According to the Forbes report released in March 2015, there are currently 1,826 U.S. dollar billionaires worldwide, from 66 countries, with a combined net worth of $7.05 trillion, which is more than the combined GDP of 152 countries. The majority of billionaires are male, but there are 197 female billionaires as of 2015. There are currently seven black billionaires and ten LGBT billionaires. The United States has the largest number of billionaires of any country, with 536 as of 2015, while China, India and Russia are home to 213, 90 and 88 billionaires respectively. Among American billionaires, the average age is 66 years; there are 46 billionaires under the age of 40 globally as of 2015.