Definition: In this task you will be given a list of numbers. You should remove any number that is not an integer (whole number). If every number is not an whole number then an empty list ("[]") should be returned. Otherwise, answer with the list of whole numbers separated by comma inside brackets.
Input: [-16, 28.493, 56.382, -11, 13.413, -70.362, 18, -44.066, 81]

[-16, -11, 18, 81]