Q: What is the negative version of the number 66,778,561?
A: -66,778,561
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:
| 66,778,559 | 66,778,560 | 66,778,562 | 66,778,563 |
| -66,778,559 | -66,778,560 | -66,778,562 | -66,778,563 |