166404032 has 28 divisors (see below), whose sum is σ = 340863936. Its totient is φ = 80517120.

The previous prime is 166404031. The next prime is 166404037. The reversal of 166404032 is 230404661.

166404032 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×166404032³ (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 166403992 and 166404010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166404031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39953 + ... + 43920.

It is an arithmetic number, because the mean of its divisors is an integer number (12173712).

Almost surely, 2^166404032 is an apocalyptic number.

It is an amenable number.

166404032 is an abundant number, since it is smaller than the sum of its proper divisors (174459904).

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

166404032 is an equidigital number, since it uses as much as digits as its factorization.

166404032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83916 (or 83906 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 166404032 is about 12899.7686800966. The cubic root of 166404032 is about 550.0319893240.

Adding to 166404032 its reverse (230404661), we get a palindrome (396808693).

The spelling of 166404032 in words is "one hundred sixty-six million, four hundred four thousand, thirty-two".