566999969 has 2 divisors, whose sum is σ = 566999970. Its totient is φ = 566999968.

The previous prime is 566999921. The next prime is 567000011. The reversal of 566999969 is 969999665.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 491952400 + 75047569 = 22180^2 + 8663^2 .

It is a cyclic number.

It is not a de Polignac number, because 566999969 - 2²⁴ = 550222753 is a prime.

It is a super-2 number, since 2×566999969² = 642977929692001922, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 566999899 and 566999908.

It is not a weakly prime, because it can be changed into another prime (566909969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 283499984 + 283499985.

It is an arithmetic number, because the mean of its divisors is an integer number (283499985).

Almost surely, 2^566999969 is an apocalyptic number.

It is an amenable number.

566999969 is a deficient number, since it is larger than the sum of its proper divisors (1).

566999969 is an equidigital number, since it uses as much as digits as its factorization.

566999969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 63772920, while the sum is 68.

The square root of 566999969 is about 23811.7611486425. The cubic root of 566999969 is about 827.6772378303.

The spelling of 566999969 in words is "five hundred sixty-six million, nine hundred ninety-nine thousand, nine hundred sixty-nine".