164885634 has 12 divisors (see below), whose sum is σ = 357252246. Its totient is φ = 54961872.

The previous prime is 164885627. The next prime is 164885659. The reversal of 164885634 is 436588461.

164885634 is a `hidden beast` number, since 1 + 6 + 4 + 8 + 8 + 5 + 634 = 666.

164885634 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 108680625 + 56205009 = 10425^2 + 7497^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 164885634.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4580139 + ... + 4580174.

Almost surely, 2^164885634 is an apocalyptic number.

164885634 is an abundant number, since it is smaller than the sum of its proper divisors (192366612).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

164885634 is a wasteful number, since it uses less digits than its factorization.

164885634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9160321 (or 9160318 counting only the distinct ones).

The product of its digits is 552960, while the sum is 45.

The square root of 164885634 is about 12840.7801164883. The cubic root of 164885634 is about 548.3539036535.

It can be divided in two parts, 16488 and 5634, that added together give a palindrome (22122).

The spelling of 164885634 in words is "one hundred sixty-four million, eight hundred eighty-five thousand, six hundred thirty-four".