565440989233 has 2 divisors, whose sum is σ = 565440989234. Its totient is φ = 565440989232.

The previous prime is 565440989231. The next prime is 565440989249. The reversal of 565440989233 is 332989044565.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 419480314929 + 145960674304 = 647673^2 + 382048^2 .

It is a cyclic number.

It is not a de Polignac number, because 565440989233 - 2¹ = 565440989231 is a prime.

Together with 565440989231, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (565440989231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282720494616 + 282720494617.

It is an arithmetic number, because the mean of its divisors is an integer number (282720494617).

Almost surely, 2^565440989233 is an apocalyptic number.

It is an amenable number.

565440989233 is a deficient number, since it is larger than the sum of its proper divisors (1).

565440989233 is an equidigital number, since it uses as much as digits as its factorization.

565440989233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27993600, while the sum is 58.

The spelling of 565440989233 in words is "five hundred sixty-five billion, four hundred forty million, nine hundred eighty-nine thousand, two hundred thirty-three".