That is simply 640 million;
it is written as 640,000,000 in the English-speaking world
and as 640.000.000 elsewhere.
23,064,907
64 000 000
six thousand four hundred 6,400
64,086,300
7,064,001,213.032
To write 64 million in numbers, you would write it as 64,000,000. This is because the number 64 represents the millions place, and adding six zeros after it signifies the magnitude of a million. This numerical representation helps to clearly communicate the value of 64 million in a concise and standardized format.
23,064,907
64 000 000
64 400 000
six thousand four hundred 6,400
9,064,052
64,086,300
7,064,001,213.032
Thusly: 25,718,000,001,064
26 and 56 that is, 64 and 15625
6.4 million in standard form is 6.4 × 106(standard notation is 6,400,000)
Sixty-four million, fifty-seven thousand, seven hundred ninety-two.