503918900163 has 96 divisors (see below), whose sum is σ = 918480672000. Its totient is φ = 271502461440.

The previous prime is 503918900161. The next prime is 503918900167. The reversal of 503918900163 is 361009819305.

503918900163 is a `hidden beast` number, since 503 + 9 + 1 + 89 + 0 + 0 + 1 + 63 = 666.

It is not a de Polignac number, because 503918900163 - 2¹ = 503918900161 is a prime.

It is a super-2 number, since 2×503918900163² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (503918900161) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5256403 + ... + 5351411.

It is an arithmetic number, because the mean of its divisors is an integer number (9567507000).

Almost surely, 2^503918900163 is an apocalyptic number.

503918900163 is a deficient number, since it is larger than the sum of its proper divisors (414561771837).

503918900163 is a wasteful number, since it uses less digits than its factorization.

503918900163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95262 (or 95249 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 45.

The spelling of 503918900163 in words is "five hundred three billion, nine hundred eighteen million, nine hundred thousand, one hundred sixty-three".