Q: What is the negative version of the number 666,663,699?
A: -666,663,699
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:
| 666,663,697 | 666,663,698 | 666,663,700 | 666,663,701 |
| -666,663,697 | -666,663,698 | -666,663,700 | -666,663,701 |