16855104177 has 12 divisors (see below), whose sum is σ = 24619816260. Its totient is φ = 11110480128.

The previous prime is 16855104157. The next prime is 16855104179. The reversal of 16855104177 is 77140155861.

16855104177 is a `hidden beast` number, since 1 + 68 + 5 + 510 + 4 + 1 + 77 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1059893136 + 15795211041 = 32556^2 + 125679^2 .

It is not a de Polignac number, because 16855104177 - 2⁶ = 16855104113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16855104179) 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 11 ways as a sum of consecutive naturals, for example, 10520488 + ... + 10522089.

It is an arithmetic number, because the mean of its divisors is an integer number (2051651355).

Almost surely, 2^16855104177 is an apocalyptic number.

It is an amenable number.

16855104177 is a deficient number, since it is larger than the sum of its proper divisors (7764712083).

16855104177 is a wasteful number, since it uses less digits than its factorization.

16855104177 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21042672 (or 21042669 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 45.

The spelling of 16855104177 in words is "sixteen billion, eight hundred fifty-five million, one hundred four thousand, one hundred seventy-seven".