566161331 has 2 divisors, whose sum is σ = 566161332. Its totient is φ = 566161330.

The previous prime is 566161291. The next prime is 566161397. The reversal of 566161331 is 133161665.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-566161331 is a prime.

It is a super-2 number, since 2×566161331² = 641077305439383122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (566161231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 283080665 + 283080666.

It is an arithmetic number, because the mean of its divisors is an integer number (283080666).

Almost surely, 2^566161331 is an apocalyptic number.

566161331 is a deficient number, since it is larger than the sum of its proper divisors (1).

566161331 is an equidigital number, since it uses as much as digits as its factorization.

566161331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9720, while the sum is 32.

The square root of 566161331 is about 23794.1448890268. The cubic root of 566161331 is about 827.2689696803.

The spelling of 566161331 in words is "five hundred sixty-six million, one hundred sixty-one thousand, three hundred thirty-one".