566405657369 has 2 divisors, whose sum is σ = 566405657370. Its totient is φ = 566405657368.

The previous prime is 566405657359. The next prime is 566405657437. The reversal of 566405657369 is 963756504665.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 483458777344 + 82946880025 = 695312^2 + 288005^2 .

It is a cyclic number.

It is not a de Polignac number, because 566405657369 - 2²⁰ = 566404608793 is a prime.

It is a super-2 number, since 2×566405657369² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (566405657329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 283202828684 + 283202828685.

It is an arithmetic number, because the mean of its divisors is an integer number (283202828685).

Almost surely, 2^566405657369 is an apocalyptic number.

It is an amenable number.

566405657369 is a deficient number, since it is larger than the sum of its proper divisors (1).

566405657369 is an equidigital number, since it uses as much as digits as its factorization.

566405657369 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 122472000, while the sum is 62.

The spelling of 566405657369 in words is "five hundred sixty-six billion, four hundred five million, six hundred fifty-seven thousand, three hundred sixty-nine".