165316368 has 40 divisors (see below), whose sum is σ = 488077888. Its totient is φ = 47233152.

The previous prime is 165316363. The next prime is 165316373. The reversal of 165316368 is 863613561.

It is an interprime number because it is at equal distance from previous prime (165316363) and next prime (165316373).

It is a super-2 number, since 2×165316368² = 54659003057422848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (165316363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 245671 + ... + 246342.

Almost surely, 2^165316368 is an apocalyptic number.

It is an amenable number.

165316368 is an abundant number, since it is smaller than the sum of its proper divisors (322761520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165316368 is a wasteful number, since it uses less digits than its factorization.

165316368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492031 (or 492025 counting only the distinct ones).

The product of its digits is 77760, while the sum is 39.

The square root of 165316368 is about 12857.5412890646. The cubic root of 165316368 is about 548.8309803816.

The spelling of 165316368 in words is "one hundred sixty-five million, three hundred sixteen thousand, three hundred sixty-eight".