165539934 has 36 divisors (see below), whose sum is σ = 417230424. Its totient is φ = 47296872.

The previous prime is 165539903. The next prime is 165539953. The reversal of 165539934 is 439935561.

165539934 is a `hidden beast` number, since 1 + 6 + 553 + 9 + 93 + 4 = 666.

165539934 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 165539934.

It is a congruent number.

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 92962 + ... + 94725.

It is an arithmetic number, because the mean of its divisors is an integer number (11589734).

Almost surely, 2^165539934 is an apocalyptic number.

165539934 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

165539934 is an abundant number, since it is smaller than the sum of its proper divisors (251690490).

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

165539934 is a wasteful number, since it uses less digits than its factorization.

165539934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187709 (or 187699 counting only the distinct ones).

The product of its digits is 437400, while the sum is 45.

The square root of 165539934 is about 12866.2323156393. The cubic root of 165539934 is about 549.0782732515.

The spelling of 165539934 in words is "one hundred sixty-five million, five hundred thirty-nine thousand, nine hundred thirty-four".