Q: What is the negative version of the number 664,020,661?
A: -664,020,661
Negative numbers are usually written with - in front of them. They represent a number that is less than zero.
Here are more examples of negative numbers in sequence:
| 664,020,659 | 664,020,660 | 664,020,662 | 664,020,663 |
| -664,020,659 | -664,020,660 | -664,020,662 | -664,020,663 |