Bill Gates Tops List of World's Richest Billionaires

The number of billionaires is growing. Forbes released its World's Billionaires List Monday, with more than 1,800 billionaires making the list this year. Let's jump to the top 5 richest billionaires. Starting the list at number 5, Larry Ellison. The founder of technology company Oracle is worth more than $54 billion. Coming in at number 4, Amancio Ortega. The Spanish co-founder of clothing retail chain Zara, has a net worth of $64.5 billion. At number 3, Warren Buffett. The world's most successful investor moved up one slot this year, with a net worth of almost $73 billion. Number 2 on the list, Carlos Slim. The Mexican telecommunications mogul has a net worth of over $77 billion. And finally, the world'd richest person, Bill Gates. Forbes says the Microsoft co-founder's net worth rose to over $79 billion in 2015, from $76 billion last year. He has topped the list for 16 of the last 21 years.