518166478884 has 48 divisors (see below), whose sum is σ = 1211903235200. Its totient is φ = 172315662336.

The previous prime is 518166478871. The next prime is 518166478897. The reversal of 518166478884 is 488874661815.

It is an interprime number because it is at equal distance from previous prime (518166478871) and next prime (518166478897).

It is a super-3 number, since 3×518166478884³ (a number of 36 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11533737 + ... + 11578575.

Almost surely, 2^518166478884 is an apocalyptic number.

It is an amenable number.

518166478884 is an abundant number, since it is smaller than the sum of its proper divisors (693736756316).

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

518166478884 is a wasteful number, since it uses less digits than its factorization.

518166478884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47092 (or 47090 counting only the distinct ones).

The product of its digits is 82575360, while the sum is 66.

The spelling of 518166478884 in words is "five hundred eighteen billion, one hundred sixty-six million, four hundred seventy-eight thousand, eight hundred eighty-four".