55660139171 has 48 divisors (see below), whose sum is σ = 72567661824. Its totient is φ = 41566592448.

The previous prime is 55660139159. The next prime is 55660139179. The reversal of 55660139171 is 17193106655.

It is not a de Polignac number, because 55660139171 - 2³⁰ = 54586397347 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55660139179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9293840 + ... + 9299826.

It is an arithmetic number, because the mean of its divisors is an integer number (1511826288).

Almost surely, 2^55660139171 is an apocalyptic number.

55660139171 is a deficient number, since it is larger than the sum of its proper divisors (16907522653).

55660139171 is a wasteful number, since it uses less digits than its factorization.

55660139171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6328 (or 6309 counting only the distinct ones).

The product of its (nonzero) digits is 170100, while the sum is 44.

The spelling of 55660139171 in words is "fifty-five billion, six hundred sixty million, one hundred thirty-nine thousand, one hundred seventy-one".