37,000,000,000
There are 37,000 millions in 37 billion.
18% of 37 billion= 18% * 37000000000= 0.18 * 37000000000= 6,660,000,000 or 6.66 billion
I write it as 37000463011406 (as I use the long scale). Some people would write it as 37463011406 (as they use the short scale).
I write 620 billion as 620 billion.
Sixteen point two billion is how I would write it.
You write 3.56 billion as 3,560,000,000.
40,300,000,000
As a number it is: 1,800,000,000 = 1.8 billion
Since you asked how I would write the number, the answer is 1031.
1,000 billion billion is: 1,000,000,000,000,000,000,000
37