How many different Rubik's Cube combinations are there?

Rubik's Cube is a 3-D combination puzzle invented in 1974 by Hungarian sculptor and professor of architecture Ernő Rubik. Originally called the Magic Cube, the puzzle was licensed by Rubik to be sold by Ideal Toy Corp. In currently sold models, white is opposite yellow, blue is opposite green, and orange is opposite red, and the red, white and blue are arranged in that order in a clockwise arrangement. On early cubes, the position of the colours varied from cube to cube.

A Rubik's cube has 43 quintillion, or 43,252,003,274,489,856,000 different combinations. However, every single of the 43 quintillion combinations of the 3x3 Rubik's cube can be solved in 20 moves or less, according to Google's supercomputers.