568669663 has 2 divisors, whose sum is σ = 568669664. Its totient is φ = 568669662.

The previous prime is 568669657. The next prime is 568669691. The reversal of 568669663 is 366966865.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 568669663 - 2⁹ = 568669151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (568660663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 284334831 + 284334832.

It is an arithmetic number, because the mean of its divisors is an integer number (284334832).

Almost surely, 2^568669663 is an apocalyptic number.

568669663 is a deficient number, since it is larger than the sum of its proper divisors (1).

568669663 is an equidigital number, since it uses as much as digits as its factorization.

568669663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8398080, while the sum is 55.

The square root of 568669663 is about 23846.7956547625. The cubic root of 568669663 is about 828.4888859637.

The spelling of 568669663 in words is "five hundred sixty-eight million, six hundred sixty-nine thousand, six hundred sixty-three".