It takes 64 bits to store information about the color of one pixel, how many colors can be displayed on the screen.

The number of possible colors depends on how many states the binary code that encodes them can take. In this case, each color will be associated with one of the codes by which the computer can uniquely determine which color to display each pixel of the display.

To calculate the number of possible states of the code, you can use the formula N = 2 ^ k, where N is the number of possible states of a binary (binary) code, m is the length of the code.

So the source code can have 2 ^ 64 = 1.844674407370955e19 states and that many colors can be displayed on the screen.