165478932 has 36 divisors (see below), whose sum is σ = 426191220. Its totient is φ = 54118272.

The previous prime is 165478913. The next prime is 165478939. The reversal of 165478932 is 239874561.

165478932 is a `hidden beast` number, since 16 + 547 + 8 + 93 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 108868356 + 56610576 = 10434^2 + 7524^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165478939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41457 + ... + 45272.

It is an arithmetic number, because the mean of its divisors is an integer number (11838645).

Almost surely, 2^165478932 is an apocalyptic number.

165478932 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

165478932 is an abundant number, since it is smaller than the sum of its proper divisors (260712288).

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

165478932 is a wasteful number, since it uses less digits than its factorization.

165478932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86792 (or 86787 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 165478932 is about 12863.8614731347. The cubic root of 165478932 is about 549.0108192598.

The spelling of 165478932 in words is "one hundred sixty-five million, four hundred seventy-eight thousand, nine hundred thirty-two".