566000663 has 2 divisors, whose sum is σ = 566000664. Its totient is φ = 566000662.

The previous prime is 566000641. The next prime is 566000681. The reversal of 566000663 is 366000665.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-566000663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (566000623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 283000331 + 283000332.

It is an arithmetic number, because the mean of its divisors is an integer number (283000332).

Almost surely, 2^566000663 is an apocalyptic number.

566000663 is a deficient number, since it is larger than the sum of its proper divisors (1).

566000663 is an equidigital number, since it uses as much as digits as its factorization.

566000663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 32.

The square root of 566000663 is about 23790.7684407209. The cubic root of 566000663 is about 827.1907068138.

The spelling of 566000663 in words is "five hundred sixty-six million, six hundred sixty-three", and thus it is an aban number.