Q: What is the negative version of the number 664,016,621?
A: -664,016,621
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:
| 664,016,619 | 664,016,620 | 664,016,622 | 664,016,623 |
| -664,016,619 | -664,016,620 | -664,016,622 | -664,016,623 |