Expressed in numbers, 4.6 billion is equal to 4,600,000,000.
It is 8025046070.
8,025,046,070
8,025,046,070
9,018,0046,072
147.2 billion.
1.4791
0.0696
I write 620 billion as 620 billion.
~46 billion trillion.
Sixteen point two billion is how I would write it.
You write 3.56 billion as 3,560,000,000.