166025113 has 8 divisors (see below), whose sum is σ = 171762696. Its totient is φ = 160368000.

The previous prime is 166025089. The next prime is 166025131. The reversal of 166025113 is 311520661.

It can be written as a sum of positive squares in 4 ways, for example, as 3003289 + 163021824 = 1733^2 + 12768^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 166025113 - 2⁵ = 166025081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166025143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15906 + ... + 24187.

It is an arithmetic number, because the mean of its divisors is an integer number (21470337).

Almost surely, 2^166025113 is an apocalyptic number.

It is an amenable number.

166025113 is a deficient number, since it is larger than the sum of its proper divisors (5737583).

166025113 is a wasteful number, since it uses less digits than its factorization.

166025113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40235.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 166025113 is about 12885.0732632764. The cubic root of 166025113 is about 549.6141789994.

Adding to 166025113 its reverse (311520661), we get a palindrome (477545774).

The spelling of 166025113 in words is "one hundred sixty-six million, twenty-five thousand, one hundred thirteen".