56555271166 has 32 divisors (see below), whose sum is σ = 88819891200. Its totient is φ = 26975125440.

The previous prime is 56555271151. The next prime is 56555271247. The reversal of 56555271166 is 66117255565.

It is a happy number.

It is a congruent number.

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, 13661925 + ... + 13666063.

It is an arithmetic number, because the mean of its divisors is an integer number (2775621600).

Almost surely, 2^56555271166 is an apocalyptic number.

56555271166 is a deficient number, since it is larger than the sum of its proper divisors (32264620034).

56555271166 is a wasteful number, since it uses less digits than its factorization.

56555271166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7264.

The product of its digits is 1890000, while the sum is 49.

The spelling of 56555271166 in words is "fifty-six billion, five hundred fifty-five million, two hundred seventy-one thousand, one hundred sixty-six".