164256732 has 36 divisors (see below), whose sum is σ = 424864440. Its totient is φ = 53478432.

The previous prime is 164256707. The next prime is 164256733. The reversal of 164256732 is 237652461.

164256732 is a `hidden beast` number, since 1 + 64 + 2 + 567 + 32 = 666.

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

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164256733) 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, 51507 + ... + 54602.

It is an arithmetic number, because the mean of its divisors is an integer number (11801790).

Almost surely, 2^164256732 is an apocalyptic number.

164256732 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

164256732 is an abundant number, since it is smaller than the sum of its proper divisors (260607708).

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

164256732 is a wasteful number, since it uses less digits than its factorization.

164256732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106162 (or 106157 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 164256732 is about 12816.2682556195. The cubic root of 164256732 is about 547.6558435445.

The spelling of 164256732 in words is "one hundred sixty-four million, two hundred fifty-six thousand, seven hundred thirty-two".