166015325 has 12 divisors (see below), whose sum is σ = 235267680. Its totient is φ = 113838960.

The previous prime is 166015301. The next prime is 166015351. The reversal of 166015325 is 523510661.

It is not a de Polignac number, because 166015325 - 2¹⁴ = 165998941 is a prime.

It is a super-2 number, since 2×166015325² = 55122176269711250, which contains 22 as substring.

It is a Curzon number.

It is a congruent 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, 474155 + ... + 474504.

It is an arithmetic number, because the mean of its divisors is an integer number (19605640).

Almost surely, 2^166015325 is an apocalyptic number.

It is an amenable number.

166015325 is a deficient number, since it is larger than the sum of its proper divisors (69252355).

166015325 is an equidigital number, since it uses as much as digits as its factorization.

166015325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 948676 (or 948671 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 166015325 is about 12884.6934383399. The cubic root of 166015325 is about 549.6033779642.

Adding to 166015325 its reverse (523510661), we get a palindrome (689525986).

The spelling of 166015325 in words is "one hundred sixty-six million, fifteen thousand, three hundred twenty-five".