566845666837 has 2 divisors, whose sum is σ = 566845666838. Its totient is φ = 566845666836.

The previous prime is 566845666823. The next prime is 566845666847. The reversal of 566845666837 is 738666548665.

566845666837 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 556763699556 + 10081967281 = 746166^2 + 100409^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-566845666837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (566845666847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 283422833418 + 283422833419.

It is an arithmetic number, because the mean of its divisors is an integer number (283422833419).

Almost surely, 2^566845666837 is an apocalyptic number.

It is an amenable number.

566845666837 is a deficient number, since it is larger than the sum of its proper divisors (1).

566845666837 is an equidigital number, since it uses as much as digits as its factorization.

566845666837 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1045094400, while the sum is 70.

The spelling of 566845666837 in words is "five hundred sixty-six billion, eight hundred forty-five million, six hundred sixty-six thousand, eight hundred thirty-seven".