Q: What is the negative version of the number 721,665,613?
A: -721,665,613
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:
| 721,665,611 | 721,665,612 | 721,665,614 | 721,665,615 |
| -721,665,611 | -721,665,612 | -721,665,614 | -721,665,615 |