566877161 has 2 divisors, whose sum is σ = 566877162. Its totient is φ = 566877160.

The previous prime is 566877139. The next prime is 566877163. The reversal of 566877161 is 161778665.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 325261225 + 241615936 = 18035^2 + 15544^2 .

It is a cyclic number.

It is not a de Polignac number, because 566877161 - 2⁶ = 566877097 is a prime.

Together with 566877163, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (566877163) 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, 283438580 + 283438581.

It is an arithmetic number, because the mean of its divisors is an integer number (283438581).

Almost surely, 2^566877161 is an apocalyptic number.

It is an amenable number.

566877161 is a deficient number, since it is larger than the sum of its proper divisors (1).

566877161 is an equidigital number, since it uses as much as digits as its factorization.

566877161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 423360, while the sum is 47.

The square root of 566877161 is about 23809.1822833125. The cubic root of 566877161 is about 827.6174772593.

The spelling of 566877161 in words is "five hundred sixty-six million, eight hundred seventy-seven thousand, one hundred sixty-one".