163316265 has 24 divisors (see below), whose sum is σ = 303969600. Its totient is φ = 74658528.

The previous prime is 163316249. The next prime is 163316273. The reversal of 163316265 is 562613361.

It is not a de Polignac number, because 163316265 - 2⁴ = 163316249 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 110365 + ... + 111834.

It is an arithmetic number, because the mean of its divisors is an integer number (12665400).

Almost surely, 2^163316265 is an apocalyptic number.

163316265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

163316265 is a deficient number, since it is larger than the sum of its proper divisors (140653335).

163316265 is a wasteful number, since it uses less digits than its factorization.

163316265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222221 (or 222214 counting only the distinct ones).

The product of its digits is 19440, while the sum is 33.

The square root of 163316265 is about 12779.5252259229. The cubic root of 163316265 is about 546.6086244064.

The spelling of 163316265 in words is "one hundred sixty-three million, three hundred sixteen thousand, two hundred sixty-five".