Q: What is the negative version of the number 66,686,721?
A: -66,686,721
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:
| 66,686,719 | 66,686,720 | 66,686,722 | 66,686,723 |
| -66,686,719 | -66,686,720 | -66,686,722 | -66,686,723 |