It is written "Five hundred million."
Five hundred million.
Five billion three hundred sixty-five million OR five thousand three hundred sixty-five million.
one million, five hundred sixty thousand, five hundred
Three million, five hundred seventy thousand
Five hundred million.
Six million, five hundred thousand.
Ten million, five hundred thousand.
Two million five hundred thousand.
Five million seven hundred thousand.
Half a million Five hundred thousand
You write one thousand five hundred million like this in words but you write 1,500,000,000 like this in digits.
Five million, five hundred five thousand, fifty.