Number of billionaires falls by 16 this year, Forbes list reveals

Denis O’Brien, Dermot Desmond and Martin Naughton are wealthiest Irish

Still the richest...Zuckerberg Pic: Getty

The global slowdown is hitting the richest people on the planet, according to Forbes magazine's annual billionaires list.

The rankings reveal that the number of billionaires is down to 1,810 this year - 16 fewer than in 2015.

Despite the international slump, Facebook bossMark Zuckerberg still made more money than anyone else, while China saw more of its citizens become billionaires than any other country.

Meanwhile, businessmenDenis O’Brien, Dermot Desmond and Martin Naughton ...