27665400264 has 64 divisors (see below), whose sum is σ = 69945657600. Its totient is φ = 9117702144.

The previous prime is 27665400233. The next prime is 27665400271. The reversal of 27665400264 is 46200456672.

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, 2595057 + ... + 2605695.

It is an arithmetic number, because the mean of its divisors is an integer number (1092900900).

Almost surely, 2^27665400264 is an apocalyptic number.

27665400264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

27665400264 is an abundant number, since it is smaller than the sum of its proper divisors (42280257336).

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

27665400264 is a wasteful number, since it uses less digits than its factorization.

27665400264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11862 (or 11858 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 42.

The spelling of 27665400264 in words is "twenty-seven billion, six hundred sixty-five million, four hundred thousand, two hundred sixty-four".