According to Forbes, there are 1,810 billionaires in the world this year. Their total net worth is about $6.5 trillion.
Bill Gates is (still) the richest person in the world with a net worth of 78 billion dollars, although he lost 4.2 billion dollars last year. He has been the richest person in the world for the last 3 years and topped the list 17 times out of the last 22 years.
Mark Zuckerberg and Jeff Bezos make their first appearance in the top 10 Forbes annual ranking of the wealthiest people in the world. Zuckerberg had one of the best year of all billionaires because he managed to add $11.2 billion to his fortune and moved up to number 3 in this top 10 richest tech billionaires 2016 and number 6 in general, from number 16 last year.
All the guys from this top 10 richest tech billionaires in 2016 are from the United States with just one exception: Jack Ma (Alibaba) who is from China. If you want to see the full list of 2016 billionaire rankings, click here.