5666677957 has 2 divisors, whose sum is σ = 5666677958. Its totient is φ = 5666677956.

The previous prime is 5666677889. The next prime is 5666677967. The reversal of 5666677957 is 7597766665.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3873070756 + 1793607201 = 62234^2 + 42351^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5666677957 is a prime.

It is a super-2 number, since 2×5666677957² = 64222478136699387698, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5666677967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2833338978 + 2833338979.

It is an arithmetic number, because the mean of its divisors is an integer number (2833338979).

Almost surely, 2^5666677957 is an apocalyptic number.

It is an amenable number.

5666677957 is a deficient number, since it is larger than the sum of its proper divisors (1).

5666677957 is an equidigital number, since it uses as much as digits as its factorization.

5666677957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 100018800, while the sum is 64.

The square root of 5666677957 is about 75277.3402625252. The cubic root of 5666677957 is about 1782.8282644542.

The spelling of 5666677957 in words is "five billion, six hundred sixty-six million, six hundred seventy-seven thousand, nine hundred fifty-seven".