166304325 has 24 divisors (see below), whose sum is σ = 299954016. Its totient is φ = 80632000.

The previous prime is 166304309. The next prime is 166304351. The reversal of 166304325 is 523403661.

166304325 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 166304325 - 2⁴ = 166304309 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 166304292 and 166304301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 99966 + ... + 101615.

It is an arithmetic number, because the mean of its divisors is an integer number (12498084).

Almost surely, 2^166304325 is an apocalyptic number.

166304325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

166304325 is a deficient number, since it is larger than the sum of its proper divisors (133649691).

166304325 is a wasteful number, since it uses less digits than its factorization.

166304325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201605 (or 201600 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 166304325 is about 12895.9034193034. The cubic root of 166304325 is about 549.9221101821.

Adding to 166304325 its reverse (523403661), we get a palindrome (689707986).

The spelling of 166304325 in words is "one hundred sixty-six million, three hundred four thousand, three hundred twenty-five".