166432 has 24 divisors (see below), whose sum is σ = 374976. Its totient is φ = 71232.

The previous prime is 166429. The next prime is 166457. The reversal of 166432 is 234661.

It is a super-2 number, since 2×166432² = 55399221248, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148 + ... + 595.

It is an arithmetic number, because the mean of its divisors is an integer number (15624).

2¹⁶⁶⁴³² is an apocalyptic number.

It is an amenable number.

166432 is an abundant number, since it is smaller than the sum of its proper divisors (208544).

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

166432 is an equidigital number, since it uses as much as digits as its factorization.

166432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 760 (or 752 counting only the distinct ones).

The product of its digits is 864, while the sum is 22.

The square root of 166432 is about 407.9607824289. The cubic root of 166432 is about 55.0062802746.

The spelling of 166432 in words is "one hundred sixty-six thousand, four hundred thirty-two".