55516560177 has 32 divisors (see below), whose sum is σ = 80885750400. Its totient is φ = 33664891392.

The previous prime is 55516560139. The next prime is 55516560217. The reversal of 55516560177 is 77106561555.

It is not a de Polignac number, because 55516560177 - 2⁸ = 55516559921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55516560377) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1237149 + ... + 1281237.

It is an arithmetic number, because the mean of its divisors is an integer number (2527679700).

Almost surely, 2^55516560177 is an apocalyptic number.

It is an amenable number.

55516560177 is a deficient number, since it is larger than the sum of its proper divisors (25369190223).

55516560177 is a wasteful number, since it uses less digits than its factorization.

55516560177 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44577.

The product of its (nonzero) digits is 1102500, while the sum is 48.

The spelling of 55516560177 in words is "fifty-five billion, five hundred sixteen million, five hundred sixty thousand, one hundred seventy-seven".