566845665811 has 2 divisors, whose sum is σ = 566845665812. Its totient is φ = 566845665810.

The previous prime is 566845665797. The next prime is 566845665823. The reversal of 566845665811 is 118566548665.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 566845665811 - 2⁵ = 566845665779 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 566845665811.

It is not a weakly prime, because it can be changed into another prime (566845660811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 283422832905 + 283422832906.

It is an arithmetic number, because the mean of its divisors is an integer number (283422832906).

Almost surely, 2^566845665811 is an apocalyptic number.

566845665811 is a deficient number, since it is larger than the sum of its proper divisors (1).

566845665811 is an equidigital number, since it uses as much as digits as its factorization.

566845665811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472000, while the sum is 61.

The spelling of 566845665811 in words is "five hundred sixty-six billion, eight hundred forty-five million, six hundred sixty-five thousand, eight hundred eleven".