55671520170056 has 64 divisors (see below), whose sum is σ = 119416718361600. Its totient is φ = 23835114312768.

The previous prime is 55671520170053. The next prime is 55671520170073. The reversal of 55671520170056 is 65007102517655.

It is a junction number, because it is equal to n+sod(n) for n = 55671520169986 and 55671520170013.

It is not an unprimeable number, because it can be changed into a prime (55671520170053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 223834775 + ... + 224083353.

It is an arithmetic number, because the mean of its divisors is an integer number (1865886224400).

Almost surely, 2^{55671520170056} is an apocalyptic number.

55671520170056 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

55671520170056 is an abundant number, since it is smaller than the sum of its proper divisors (63745198191544).

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

55671520170056 is a wasteful number, since it uses less digits than its factorization.

55671520170056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252618 (or 252614 counting only the distinct ones).

The product of its (nonzero) digits is 2205000, while the sum is 50.

The spelling of 55671520170056 in words is "fifty-five trillion, six hundred seventy-one billion, five hundred twenty million, one hundred seventy thousand, fifty-six".