65568113 has 6 divisors (see below), whose sum is σ = 70999974. Its totient is φ = 60524256.

The previous prime is 65568103. The next prime is 65568161. The reversal of 65568113 is 31186556.

It can be written as a sum of positive squares in 3 ways, for example, as 652864 + 64915249 = 808^2 + 8057^2 .

It is not a de Polignac number, because 65568113 - 2²⁴ = 48790897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65568103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 193820 + ... + 194157.

It is an arithmetic number, because the mean of its divisors is an integer number (11833329).

Almost surely, 2^65568113 is an apocalyptic number.

It is an amenable number.

65568113 is a deficient number, since it is larger than the sum of its proper divisors (5431861).

65568113 is a wasteful number, since it uses less digits than its factorization.

65568113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388003 (or 387990 counting only the distinct ones).

The product of its digits is 21600, while the sum is 35.

The square root of 65568113 is about 8097.4139699042. The cubic root of 65568113 is about 403.2405778250.

The spelling of 65568113 in words is "sixty-five million, five hundred sixty-eight thousand, one hundred thirteen".