64566113 has 2 divisors, whose sum is σ = 64566114. Its totient is φ = 64566112.

The previous prime is 64566079. The next prime is 64566127. The reversal of 64566113 is 31166546.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46144849 + 18421264 = 6793^2 + 4292^2 .

It is a cyclic number.

It is not a de Polignac number, because 64566113 - 2¹⁴ = 64549729 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64566113.

It is not a weakly prime, because it can be changed into another prime (64566133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32283056 + 32283057.

It is an arithmetic number, because the mean of its divisors is an integer number (32283057).

Almost surely, 2^64566113 is an apocalyptic number.

It is an amenable number.

64566113 is a deficient number, since it is larger than the sum of its proper divisors (1).

64566113 is an equidigital number, since it uses as much as digits as its factorization.

64566113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 32.

The square root of 64566113 is about 8035.3041635025. The cubic root of 64566113 is about 401.1759415989.

The spelling of 64566113 in words is "sixty-four million, five hundred sixty-six thousand, one hundred thirteen".