118170991828 has 24 divisors (see below), whose sum is σ = 208136678400. Its totient is φ = 58704449568.

The previous prime is 118170991819. The next prime is 118170991871. The reversal of 118170991828 is 828199071811.

It is a super-2 number, since 2×118170991828² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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, 304101 + ... + 573427.

It is an arithmetic number, because the mean of its divisors is an integer number (8672361600).

Almost surely, 2^118170991828 is an apocalyptic number.

It is an amenable number.

118170991828 is a deficient number, since it is larger than the sum of its proper divisors (89965686572).

118170991828 is a wasteful number, since it uses less digits than its factorization.

118170991828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270039 (or 270037 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 55.

The spelling of 118170991828 in words is "one hundred eighteen billion, one hundred seventy million, nine hundred ninety-one thousand, eight hundred twenty-eight".