27800716164 has 24 divisors (see below), whose sum is σ = 69858210240. Its totient is φ = 8554066464.

The previous prime is 27800716157. The next prime is 27800716211. The reversal of 27800716164 is 46161700872.

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, 89104704 + ... + 89105015.

It is an arithmetic number, because the mean of its divisors is an integer number (2910758760).

Almost surely, 2^27800716164 is an apocalyptic number.

It is an amenable number.

27800716164 is an abundant number, since it is smaller than the sum of its proper divisors (42057494076).

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

27800716164 is a wasteful number, since it uses less digits than its factorization.

27800716164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178209739 (or 178209737 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 42.

The spelling of 27800716164 in words is "twenty-seven billion, eight hundred million, seven hundred sixteen thousand, one hundred sixty-four".