885641165 has 4 divisors (see below), whose sum is σ = 1062769404. Its totient is φ = 708512928.

The previous prime is 885641161. The next prime is 885641171. The reversal of 885641165 is 561146588.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 696220996 + 189420169 = 26386^2 + 13763^2 .

It is a cyclic number.

It is not a de Polignac number, because 885641165 - 2² = 885641161 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (885641161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88564112 + ... + 88564121.

It is an arithmetic number, because the mean of its divisors is an integer number (265692351).

Almost surely, 2^885641165 is an apocalyptic number.

It is an amenable number.

885641165 is a deficient number, since it is larger than the sum of its proper divisors (177128239).

885641165 is a wasteful number, since it uses less digits than its factorization.

885641165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177128238.

The product of its digits is 230400, while the sum is 44.

The square root of 885641165 is about 29759.7238730469. The cubic root of 885641165 is about 960.3272773751.

The spelling of 885641165 in words is "eight hundred eighty-five million, six hundred forty-one thousand, one hundred sixty-five".