It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 166 164 is not a prime number.
For example, 166 164 can be divided by 2: 166 164 / 2 = 83 082.
For 166 164 to be a prime number, it would have been required that 166 164 has only two divisors, i.e., itself and 1.
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166 164 is an even number, because it is evenly divisible by 2: 166 164 / 2 = 83 082.
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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 166 164 is about 407.632.
Thus, the square root of 166 164 is not an integer, and therefore 166 164 is not a square number.
The square of a number (here 166 164) is the result of the product of this number (166 164) by itself (i.e., 166 164 × 166 164); the square of 166 164 is sometimes called "raising 166 164 to the power 2", or "166 164 squared".
The square of 166 164 is 27 610 474 896 because 166 164 × 166 164 = 166 1642 = 27 610 474 896.
As a consequence, 166 164 is the square root of 27 610 474 896.
The multiples of 166 164 are all integers evenly divisible by 166 164, that is all numbers such that the remainder of the division by 166 164 is zero. There are infinitely many multiples of 166 164. The smallest multiples of 166 164 are: