It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 165 109 507 is not a prime number.
For example, 165 109 507 can be divided by 67: 165 109 507 / 67 = 2 464 321.
For 165 109 507 to be a prime number, it would have been required that 165 109 507 has only two divisors, i.e., itself and 1.
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165 109 507 is an odd number, because it is not evenly divisible by 2.
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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 165 109 507 is about 12 849.494.
Thus, the square root of 165 109 507 is not an integer, and therefore 165 109 507 is not a square number.
The square of a number (here 165 109 507) is the result of the product of this number (165 109 507) by itself (i.e., 165 109 507 × 165 109 507); the square of 165 109 507 is sometimes called "raising 165 109 507 to the power 2", or "165 109 507 squared".
The square of 165 109 507 is 27 261 149 301 783 048 because 165 109 507 × 165 109 507 = 165 109 5072 = 27 261 149 301 783 048.
As a consequence, 165 109 507 is the square root of 27 261 149 301 783 048.
165 109 507 is a number with 9 digits.
The multiples of 165 109 507 are all integers evenly divisible by 165 109 507, that is all numbers such that the remainder of the division by 165 109 507 is zero. There are infinitely many multiples of 165 109 507. The smallest multiples of 165 109 507 are: