166323025 has 12 divisors (see below), whose sum is σ = 224990064. Its totient is φ = 120962000.

The previous prime is 166323007. The next prime is 166323037. The reversal of 166323025 is 520323661.

It is not a de Polignac number, because 166323025 - 2⁵ = 166322993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 166322984 and 166323002.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 302131 + ... + 302680.

It is an arithmetic number, because the mean of its divisors is an integer number (18749172).

Almost surely, 2^166323025 is an apocalyptic number.

It is an amenable number.

166323025 is a deficient number, since it is larger than the sum of its proper divisors (58667039).

166323025 is a wasteful number, since it uses less digits than its factorization.

166323025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604832 (or 604827 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 166323025 is about 12896.6284353702. The cubic root of 166323025 is about 549.9427213078.

Adding to 166323025 its reverse (520323661), we get a palindrome (686646686).

The spelling of 166323025 in words is "one hundred sixty-six million, three hundred twenty-three thousand, twenty-five".