55011106161 has 72 divisors (see below), whose sum is σ = 89974946880. Its totient is φ = 32340116160.

The previous prime is 55011106153. The next prime is 55011106219. The reversal of 55011106161 is 16160111055.

55011106161 is a `hidden beast` number, since 550 + 1 + 1 + 106 + 1 + 6 + 1 = 666.

It is not a de Polignac number, because 55011106161 - 2³ = 55011106153 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55011102161) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 14463286 + ... + 14467088.

It is an arithmetic number, because the mean of its divisors is an integer number (1249652040).

Almost surely, 2^55011106161 is an apocalyptic number.

It is an amenable number.

55011106161 is a deficient number, since it is larger than the sum of its proper divisors (34963840719).

55011106161 is a wasteful number, since it uses less digits than its factorization.

55011106161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4227 (or 4213 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 27.

The spelling of 55011106161 in words is "fifty-five billion, eleven million, one hundred six thousand, one hundred sixty-one".