Q: What is the negative version of the number 663,355,643?
A: -663,355,643
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:
| 663,355,641 | 663,355,642 | 663,355,644 | 663,355,645 |
| -663,355,641 | -663,355,642 | -663,355,644 | -663,355,645 |