565065560565 has 32 divisors (see below), whose sum is σ = 1095884726400. Its totient is φ = 273971180160.

The previous prime is 565065560551. The next prime is 565065560567.

565065560565 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 565065560565 - 2²⁰ = 565064511989 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (565065560567) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 190256280 + ... + 190259249.

It is an arithmetic number, because the mean of its divisors is an integer number (34246397700).

Almost surely, 2^565065560565 is an apocalyptic number.

565065560565 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

565065560565 is a deficient number, since it is larger than the sum of its proper divisors (530819165835).

565065560565 is a wasteful number, since it uses less digits than its factorization.

565065560565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380515554 (or 380515548 counting only the distinct ones).

The product of its (nonzero) digits is 20250000, while the sum is 54.

The spelling of 565065560565 in words is "five hundred sixty-five billion, sixty-five million, five hundred sixty thousand, five hundred sixty-five".