520163330 has 16 divisors (see below), whose sum is σ = 936660024. Its totient is φ = 207984000.

The previous prime is 520163327. The next prime is 520163383. The reversal of 520163330 is 33361025.

It can be written as a sum of positive squares in 4 ways, for example, as 291760561 + 228402769 = 17081^2 + 15113^2 .

It is a junction number, because it is equal to n+sod(n) for n = 520163296 and 520163305.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21344 + ... + 38676.

Almost surely, 2^520163330 is an apocalyptic number.

520163330 is a deficient number, since it is larger than the sum of its proper divisors (416496694).

520163330 is a wasteful number, since it uses less digits than its factorization.

520163330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20341.

The product of its (nonzero) digits is 1620, while the sum is 23.

The square root of 520163330 is about 22807.0894679703. The cubic root of 520163330 is about 804.2293358709.

The spelling of 520163330 in words is "five hundred twenty million, one hundred sixty-three thousand, three hundred thirty".