166010825 has 12 divisors (see below), whose sum is σ = 206355468. Its totient is φ = 132484800.

The previous prime is 166010753. The next prime is 166010839. The reversal of 166010825 is 528010661.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 32307856 + 133702969 = 5684^2 + 11563^2 .

It is not a de Polignac number, because 166010825 - 2¹⁰ = 166009801 is a prime.

It is a Duffinian number.

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, 2639 + ... + 18411.

It is an arithmetic number, because the mean of its divisors is an integer number (17196289).

Almost surely, 2^166010825 is an apocalyptic number.

It is an amenable number.

166010825 is a deficient number, since it is larger than the sum of its proper divisors (40344643).

166010825 is a wasteful number, since it uses less digits than its factorization.

166010825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16204 (or 16199 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 166010825 is about 12884.5188113488. The cubic root of 166010825 is about 549.5984120822.

The spelling of 166010825 in words is "one hundred sixty-six million, ten thousand, eight hundred twenty-five".