Q: What is the negative version of the number 666,363,621?
A: -666,363,621
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:
| 666,363,619 | 666,363,620 | 666,363,622 | 666,363,623 |
| -666,363,619 | -666,363,620 | -666,363,622 | -666,363,623 |