It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 263 466 013 is not a prime number.
For example, 263 466 013 can be divided by 557: 263 466 013 / 557 = 473 009.
For 263 466 013 to be a prime number, it would have been required that 263 466 013 has only two divisors, i.e., itself and 1.
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263 466 013 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 263 466 013 is about 16 231.636.
Thus, the square root of 263 466 013 is not an integer, and therefore 263 466 013 is not a square number.
The square of a number (here 263 466 013) is the result of the product of this number (263 466 013) by itself (i.e., 263 466 013 × 263 466 013); the square of 263 466 013 is sometimes called "raising 263 466 013 to the power 2", or "263 466 013 squared".
The square of 263 466 013 is 69 414 340 006 116 168 because 263 466 013 × 263 466 013 = 263 466 0132 = 69 414 340 006 116 168.
As a consequence, 263 466 013 is the square root of 69 414 340 006 116 168.
263 466 013 is a number with 9 digits.
The multiples of 263 466 013 are all integers evenly divisible by 263 466 013, that is all numbers such that the remainder of the division by 263 466 013 is zero. There are infinitely many multiples of 263 466 013. The smallest multiples of 263 466 013 are: