It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 165 016 077 is not a prime number.
For example, 165 016 077 can be divided by 3: 165 016 077 / 3 = 55 005 359.
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For 165 016 077 to be a prime number, it would have been required that 165 016 077 has only two divisors, i.e., itself and 1.
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165 016 077 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 165 016 077 is about 12 845.858.
Thus, the square root of 165 016 077 is not an integer, and therefore 165 016 077 is not a square number.
The square of a number (here 165 016 077) is the result of the product of this number (165 016 077) by itself (i.e., 165 016 077 × 165 016 077); the square of 165 016 077 is sometimes called "raising 165 016 077 to the power 2", or "165 016 077 squared".
The square of 165 016 077 is 27 230 305 668 469 928 because 165 016 077 × 165 016 077 = 165 016 0772 = 27 230 305 668 469 928.
As a consequence, 165 016 077 is the square root of 27 230 305 668 469 928.
165 016 077 is a number with 9 digits.
The multiples of 165 016 077 are all integers evenly divisible by 165 016 077, that is all numbers such that the remainder of the division by 165 016 077 is zero. There are infinitely many multiples of 165 016 077. The smallest multiples of 165 016 077 are: