320164533 has 24 divisors (see below), whose sum is σ = 500572800. Its totient is φ = 196020000.

The previous prime is 320164513. The next prime is 320164543. The reversal of 320164533 is 335461023.

It is a happy number.

320164533 is a `hidden beast` number, since 3 + 201 + 6 + 453 + 3 = 666.

It is not a de Polignac number, because 320164533 - 2⁸ = 320164277 is a prime.

It is a super-2 number, since 2×320164533² = 205010656382216178, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 320164497 and 320164506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320164513) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16408 + ... + 30158.

It is an arithmetic number, because the mean of its divisors is an integer number (20857200).

Almost surely, 2^320164533 is an apocalyptic number.

It is an amenable number.

320164533 is a deficient number, since it is larger than the sum of its proper divisors (180408267).

320164533 is a wasteful number, since it uses less digits than its factorization.

320164533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13969 (or 13966 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

The square root of 320164533 is about 17893.1420661660. The cubic root of 320164533 is about 684.1075866984.

The spelling of 320164533 in words is "three hundred twenty million, one hundred sixty-four thousand, five hundred thirty-three".