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: [15, -16.516, -8.104, 58, 40.875, -2.558, 9.064, -51, -11.968, 19, -6]

[15, 58, -51, 19, -6]