It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 510 516 066 is not a prime number.
For example, 510 516 066 can be divided by 2: 510 516 066 / 2 = 255 258 033.
For 510 516 066 to be a prime number, it would have been required that 510 516 066 has only two divisors, i.e., itself and 1.
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510 516 066 is an even number, because it is evenly divisible by 2: 510 516 066 / 2 = 255 258 033.
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A number is a perfect square (or a square number) if its square root is an integer; that is to say, it is the product of an integer with itself. Here, the square root of 510 516 066 is about 22 594.603.
Thus, the square root of 510 516 066 is not an integer, and therefore 510 516 066 is not a square number.
The square of a number (here 510 516 066) is the result of the product of this number (510 516 066) by itself (i.e., 510 516 066 × 510 516 066); the square of 510 516 066 is sometimes called "raising 510 516 066 to the power 2", or "510 516 066 squared".
The square of 510 516 066 is 260 626 653 644 116 352 because 510 516 066 × 510 516 066 = 510 516 0662 = 260 626 653 644 116 352.
As a consequence, 510 516 066 is the square root of 260 626 653 644 116 352.
510 516 066 is a number with 9 digits.
The multiples of 510 516 066 are all integers evenly divisible by 510 516 066, that is all numbers such that the remainder of the division by 510 516 066 is zero. There are infinitely many multiples of 510 516 066. The smallest multiples of 510 516 066 are: