166113568 has 12 divisors (see below), whose sum is σ = 327036150. Its totient is φ = 83056768.

The previous prime is 166113551. The next prime is 166113641. The reversal of 166113568 is 865311661.

It can be written as a sum of positive squares in only one way, i.e., 111767184 + 54346384 = 10572^2 + 7372^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2595493 + ... + 2595556.

Almost surely, 2^166113568 is an apocalyptic number.

It is an amenable number.

166113568 is a deficient number, since it is larger than the sum of its proper divisors (160922582).

166113568 is an equidigital number, since it uses as much as digits as its factorization.

166113568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5191059 (or 5191051 counting only the distinct ones).

The product of its digits is 25920, while the sum is 37.

The square root of 166113568 is about 12888.5052663216. The cubic root of 166113568 is about 549.7117696389.

The spelling of 166113568 in words is "one hundred sixty-six million, one hundred thirteen thousand, five hundred sixty-eight".