566211343112665 has 4 divisors (see below), whose sum is σ = 679453611735204. Its totient is φ = 452969074490128.

The previous prime is 566211343112659. The next prime is 566211343112687.

566211343112665 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 426651828424704 + 139559514687961 = 20655552^2 + 11813531^2 .

It is a cyclic number.

It is not a de Polignac number, because 566211343112665 - 2¹⁷ = 566211342981593 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56621134311262 + ... + 56621134311271.

It is an arithmetic number, because the mean of its divisors is an integer number (169863402933801).

Almost surely, 2^{566211343112665} is an apocalyptic number.

It is an amenable number.

566211343112665 is a deficient number, since it is larger than the sum of its proper divisors (113242268622539).

566211343112665 is a wasteful number, since it uses less digits than its factorization.

566211343112665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113242268622538.

The product of its digits is 4665600, while the sum is 52.

The spelling of 566211343112665 in words is "five hundred sixty-six trillion, two hundred eleven billion, three hundred forty-three million, one hundred twelve thousand, six hundred sixty-five".