566680565870845 has 16 divisors (see below), whose sum is σ = 691165567809072. Its totient is φ = 445911883292160.

The previous prime is 566680565870833. The next prime is 566680565870851. The reversal of 566680565870845 is 548078565086665.

It can be written as a sum of positive squares in 8 ways, for example, as 125530445097369 + 441150120773476 = 11204037^2 + 21003574^2 .

It is not a de Polignac number, because 566680565870845 - 2⁷ = 566680565870717 is a prime.

It is a super-2 number, since 2×566680565870845² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 294076209 + ... + 295996921.

It is an arithmetic number, because the mean of its divisors is an integer number (43197847988067).

Almost surely, 2^{566680565870845} is an apocalyptic number.

It is an amenable number.

566680565870845 is a deficient number, since it is larger than the sum of its proper divisors (124485001938227).

566680565870845 is a wasteful number, since it uses less digits than its factorization.

566680565870845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2888112.

The product of its (nonzero) digits is 11612160000, while the sum is 79.

The spelling of 566680565870845 in words is "five hundred sixty-six trillion, six hundred eighty billion, five hundred sixty-five million, eight hundred seventy thousand, eight hundred forty-five".