565813268883649 has 2 divisors, whose sum is σ = 565813268883650. Its totient is φ = 565813268883648.

The previous prime is 565813268883617. The next prime is 565813268883673. The reversal of 565813268883649 is 946388862318565.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 380213652868624 + 185599616015025 = 19499068^2 + 13623495^2 .

It is a cyclic number.

It is not a de Polignac number, because 565813268883649 - 2⁵ = 565813268883617 is a prime.

It is not a weakly prime, because it can be changed into another prime (565813268883679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282906634441824 + 282906634441825.

It is an arithmetic number, because the mean of its divisors is an integer number (282906634441825).

Almost surely, 2^{565813268883649} is an apocalyptic number.

It is an amenable number.

565813268883649 is a deficient number, since it is larger than the sum of its proper divisors (1).

565813268883649 is an equidigital number, since it uses as much as digits as its factorization.

565813268883649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14332723200, while the sum is 82.

The spelling of 565813268883649 in words is "five hundred sixty-five trillion, eight hundred thirteen billion, two hundred sixty-eight million, eight hundred eighty-three thousand, six hundred forty-nine".