Q: What is the negative version of the number 664,643,247?
A: -664,643,247
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:
| 664,643,245 | 664,643,246 | 664,643,248 | 664,643,249 |
| -664,643,245 | -664,643,246 | -664,643,248 | -664,643,249 |