Q: What is the negative version of the number 666,663,707?
A: -666,663,707
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:
| 666,663,705 | 666,663,706 | 666,663,708 | 666,663,709 |
| -666,663,705 | -666,663,706 | -666,663,708 | -666,663,709 |