Q: What is the negative version of the number 666,557,521?
A: -666,557,521
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:
| 666,557,519 | 666,557,520 | 666,557,522 | 666,557,523 |
| -666,557,519 | -666,557,520 | -666,557,522 | -666,557,523 |