It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 495 510 016 is not a prime number.
For example, 495 510 016 can be divided by 2: 495 510 016 / 2 = 247 755 008.
For 495 510 016 to be a prime number, it would have been required that 495 510 016 has only two divisors, i.e., itself and 1.
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495 510 016 is an even number, because it is evenly divisible by 2: 495 510 016 / 2 = 247 755 008.
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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 495 510 016 is about 22 260.054.
Thus, the square root of 495 510 016 is not an integer, and therefore 495 510 016 is not a square number.
The square of a number (here 495 510 016) is the result of the product of this number (495 510 016) by itself (i.e., 495 510 016 × 495 510 016); the square of 495 510 016 is sometimes called "raising 495 510 016 to the power 2", or "495 510 016 squared".
The square of 495 510 016 is 245 530 175 956 320 256 because 495 510 016 × 495 510 016 = 495 510 0162 = 245 530 175 956 320 256.
As a consequence, 495 510 016 is the square root of 245 530 175 956 320 256.
495 510 016 is a number with 9 digits.
The multiples of 495 510 016 are all integers evenly divisible by 495 510 016, that is all numbers such that the remainder of the division by 495 510 016 is zero. There are infinitely many multiples of 495 510 016. The smallest multiples of 495 510 016 are: