520187166 has 12 divisors (see below), whose sum is σ = 1127072232. Its totient is φ = 173395716.

The previous prime is 520187093. The next prime is 520187191. The reversal of 520187166 is 661781025.

520187166 is a `hidden beast` number, since 520 + 1 + 8 + 71 + 66 = 666.

It is a super-2 number, since 2×520187166² = 541189375342223112, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 520187166.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14449626 + ... + 14449661.

It is an arithmetic number, because the mean of its divisors is an integer number (93922686).

Almost surely, 2^520187166 is an apocalyptic number.

520187166 is an abundant number, since it is smaller than the sum of its proper divisors (606885066).

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

520187166 is a wasteful number, since it uses less digits than its factorization.

520187166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28899295 (or 28899292 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 520187166 is about 22807.6120187976. The cubic root of 520187166 is about 804.2416200366.

The spelling of 520187166 in words is "five hundred twenty million, one hundred eighty-seven thousand, one hundred sixty-six".