165485637 has 12 divisors (see below), whose sum is σ = 244121280. Its totient is φ = 107976168.

The previous prime is 165485627. The next prime is 165485651. The reversal of 165485637 is 736584561.

165485637 is a `hidden beast` number, since 1 + 6 + 5 + 4 + 8 + 5 + 637 = 666.

165485637 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 165485637 - 2⁸ = 165485381 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 165485592 and 165485601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165485627) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 195187 + ... + 196032.

It is an arithmetic number, because the mean of its divisors is an integer number (20343440).

Almost surely, 2^165485637 is an apocalyptic number.

It is an amenable number.

165485637 is a deficient number, since it is larger than the sum of its proper divisors (78635643).

165485637 is a wasteful number, since it uses less digits than its factorization.

165485637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391272 (or 391269 counting only the distinct ones).

The product of its digits is 604800, while the sum is 45.

The square root of 165485637 is about 12864.1220843087. The cubic root of 165485637 is about 549.0182342377.

The spelling of 165485637 in words is "one hundred sixty-five million, four hundred eighty-five thousand, six hundred thirty-seven".