55560889161 has 24 divisors (see below), whose sum is σ = 82436742024. Its totient is φ = 36033776640.

The previous prime is 55560889147. The next prime is 55560889169. The reversal of 55560889161 is 16198806555.

55560889161 is a `hidden beast` number, since 5 + 556 + 0 + 8 + 89 + 1 + 6 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 4414805136 + 51146084025 = 66444^2 + 226155^2 .

It is not a de Polignac number, because 55560889161 - 2⁵ = 55560889129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55560889098 and 55560889107.

It is not an unprimeable number, because it can be changed into a prime (55560889169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3434151 + ... + 3450291.

It is an arithmetic number, because the mean of its divisors is an integer number (3434864251).

Almost surely, 2^55560889161 is an apocalyptic number.

It is an amenable number.

55560889161 is a deficient number, since it is larger than the sum of its proper divisors (26875852863).

55560889161 is a wasteful number, since it uses less digits than its factorization.

55560889161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26521 (or 26518 counting only the distinct ones).

The product of its (nonzero) digits is 2592000, while the sum is 54.

The spelling of 55560889161 in words is "fifty-five billion, five hundred sixty million, eight hundred eighty-nine thousand, one hundred sixty-one".