5666455577 has 2 divisors, whose sum is σ = 5666455578. Its totient is φ = 5666455576.

The previous prime is 5666455573. The next prime is 5666455583. The reversal of 5666455577 is 7755546665.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4759482121 + 906973456 = 68989^2 + 30116^2 .

It is a cyclic number.

It is not a de Polignac number, because 5666455577 - 2² = 5666455573 is a prime.

It is a super-2 number, since 2×5666455577² = 64217437612228805858, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5666455573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2833227788 + 2833227789.

It is an arithmetic number, because the mean of its divisors is an integer number (2833227789).

Almost surely, 2^5666455577 is an apocalyptic number.

It is an amenable number.

5666455577 is a deficient number, since it is larger than the sum of its proper divisors (1).

5666455577 is an equidigital number, since it uses as much as digits as its factorization.

5666455577 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26460000, while the sum is 56.

The square root of 5666455577 is about 75275.8631767182. The cubic root of 5666455577 is about 1782.8049427045.

The spelling of 5666455577 in words is "five billion, six hundred sixty-six million, four hundred fifty-five thousand, five hundred seventy-seven".