885170161 has 24 divisors (see below), whose sum is σ = 981881784. Its totient is φ = 795110400.

The previous prime is 885170149. The next prime is 885170177. The reversal of 885170161 is 161071588.

It can be written as a sum of positive squares in 12 ways, for example, as 73205136 + 811965025 = 8556^2 + 28495^2 .

It is not a de Polignac number, because 885170161 - 2²⁹ = 348299249 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 885170161.

It is not an unprimeable number, because it can be changed into a prime (885170101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1443691 + ... + 1444303.

It is an arithmetic number, because the mean of its divisors is an integer number (40911741).

Almost surely, 2^885170161 is an apocalyptic number.

It is an amenable number.

885170161 is a deficient number, since it is larger than the sum of its proper divisors (96711623).

885170161 is a wasteful number, since it uses less digits than its factorization.

885170161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789 (or 760 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 37.

The square root of 885170161 is about 29751.8093735490. The cubic root of 885170161 is about 960.1570059323.

The spelling of 885170161 in words is "eight hundred eighty-five million, one hundred seventy thousand, one hundred sixty-one".