5566957181 has 2 divisors, whose sum is σ = 5566957182. Its totient is φ = 5566957180.

The previous prime is 5566957147. The next prime is 5566957199. The reversal of 5566957181 is 1817596655.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3810592900 + 1756364281 = 61730^2 + 41909^2 .

It is a cyclic number.

It is not a de Polignac number, because 5566957181 - 2³⁰ = 4493215357 is a prime.

It is a super-2 number, since 2×5566957181² = 61982024510174933522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5566957381) 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, 2783478590 + 2783478591.

It is an arithmetic number, because the mean of its divisors is an integer number (2783478591).

Almost surely, 2^5566957181 is an apocalyptic number.

It is an amenable number.

5566957181 is a deficient number, since it is larger than the sum of its proper divisors (1).

5566957181 is an equidigital number, since it uses as much as digits as its factorization.

5566957181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2268000, while the sum is 53.

The square root of 5566957181 is about 74612.0444767465. The cubic root of 5566957181 is about 1772.3083908912.

The spelling of 5566957181 in words is "five billion, five hundred sixty-six million, nine hundred fifty-seven thousand, one hundred eighty-one".