55442131317264 has 80 divisors (see below), whose sum is σ = 156542488496640. Its totient is φ = 16832525629440.

The previous prime is 55442131317253. The next prime is 55442131317283. The reversal of 55442131317264 is 46271313124455.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 1095842259 + ... + 1095892850.

It is an arithmetic number, because the mean of its divisors is an integer number (1956781106208).

Almost surely, 2^{55442131317264} is an apocalyptic number.

It is an amenable number.

55442131317264 is an abundant number, since it is smaller than the sum of its proper divisors (101100357179376).

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

55442131317264 is a wasteful number, since it uses less digits than its factorization.

55442131317264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2191735168 (or 2191735162 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 48.

The spelling of 55442131317264 in words is "fifty-five trillion, four hundred forty-two billion, one hundred thirty-one million, three hundred seventeen thousand, two hundred sixty-four".