It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 264 512 is not a prime number.
For example, 264 512 can be divided by 2: 264 512 / 2 = 132 256.
For 264 512 to be a prime number, it would have been required that 264 512 has only two divisors, i.e., itself and 1.
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264 512 is an even number, because it is evenly divisible by 2: 264 512 / 2 = 132 256.
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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 264 512 is about 514.307.
Thus, the square root of 264 512 is not an integer, and therefore 264 512 is not a square number.
The square of a number (here 264 512) is the result of the product of this number (264 512) by itself (i.e., 264 512 × 264 512); the square of 264 512 is sometimes called "raising 264 512 to the power 2", or "264 512 squared".
The square of 264 512 is 69 966 598 144 because 264 512 × 264 512 = 264 5122 = 69 966 598 144.
As a consequence, 264 512 is the square root of 69 966 598 144.
The multiples of 264 512 are all integers evenly divisible by 264 512, that is all numbers such that the remainder of the division by 264 512 is zero. There are infinitely many multiples of 264 512. The smallest multiples of 264 512 are: