565917967217 has 2 divisors, whose sum is σ = 565917967218. Its totient is φ = 565917967216.

The previous prime is 565917967193. The next prime is 565917967231. The reversal of 565917967217 is 712769719565.

565917967217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 565738648336 + 179318881 = 752156^2 + 13391^2 .

It is a cyclic number.

It is not a de Polignac number, because 565917967217 - 2³⁸ = 291040060273 is a prime.

It is not a weakly prime, because it can be changed into another prime (565917967297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282958983608 + 282958983609.

It is an arithmetic number, because the mean of its divisors is an integer number (282958983609).

Almost surely, 2^565917967217 is an apocalyptic number.

It is an amenable number.

565917967217 is a deficient number, since it is larger than the sum of its proper divisors (1).

565917967217 is an equidigital number, since it uses as much as digits as its factorization.

565917967217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 50009400, while the sum is 65.

The spelling of 565917967217 in words is "five hundred sixty-five billion, nine hundred seventeen million, nine hundred sixty-seven thousand, two hundred seventeen".