163318072 has 16 divisors (see below), whose sum is σ = 322338600. Its totient is φ = 77361120.

The previous prime is 163318039. The next prime is 163318073. The reversal of 163318072 is 270813361.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163318073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 537079 + ... + 537382.

Almost surely, 2^163318072 is an apocalyptic number.

It is an amenable number.

163318072 is a deficient number, since it is larger than the sum of its proper divisors (159020528).

163318072 is a wasteful number, since it uses less digits than its factorization.

163318072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074486 (or 1074482 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 163318072 is about 12779.5959247544. The cubic root of 163318072 is about 546.6106403683.

The spelling of 163318072 in words is "one hundred sixty-three million, three hundred eighteen thousand, seventy-two".