503564166 has 24 divisors (see below), whose sum is σ = 1246921104. Its totient is φ = 143875440.

The previous prime is 503564143. The next prime is 503564179. The reversal of 503564166 is 661465305.

503564166 is a `hidden beast` number, since 5 + 0 + 3 + 5 + 641 + 6 + 6 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 503564166.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1998145 + ... + 1998396.

It is an arithmetic number, because the mean of its divisors is an integer number (51955046).

Almost surely, 2^503564166 is an apocalyptic number.

503564166 is an abundant number, since it is smaller than the sum of its proper divisors (743356938).

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

503564166 is a wasteful number, since it uses less digits than its factorization.

503564166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3996556 (or 3996553 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 503564166 is about 22440.2354265725. The cubic root of 503564166 is about 795.5819827770.

The spelling of 503564166 in words is "five hundred three million, five hundred sixty-four thousand, one hundred sixty-six".