166004825 has 24 divisors (see below), whose sum is σ = 235848000. Its totient is φ = 113544000.

The previous prime is 166004821. The next prime is 166004827. The reversal of 166004825 is 528400661.

It is not a de Polignac number, because 166004825 - 2² = 166004821 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 166004791 and 166004800.

It is not an unprimeable number, because it can be changed into a prime (166004821) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 86375 + ... + 88275.

It is an arithmetic number, because the mean of its divisors is an integer number (9827000).

Almost surely, 2^166004825 is an apocalyptic number.

It is an amenable number.

166004825 is a deficient number, since it is larger than the sum of its proper divisors (69843175).

166004825 is a wasteful number, since it uses less digits than its factorization.

166004825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2417 (or 2412 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 166004825 is about 12884.2859716788. The cubic root of 166004825 is about 549.5917907665.

The spelling of 166004825 in words is "one hundred sixty-six million, four thousand, eight hundred twenty-five".