5666181013 has 2 divisors, whose sum is σ = 5666181014. Its totient is φ = 5666181012.

The previous prime is 5666180987. The next prime is 5666181019. The reversal of 5666181013 is 3101816665.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3178366129 + 2487814884 = 56377^2 + 49878^2 .

It is a cyclic number.

It is not a de Polignac number, because 5666181013 - 2⁵ = 5666180981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5666181019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2833090506 + 2833090507.

It is an arithmetic number, because the mean of its divisors is an integer number (2833090507).

Almost surely, 2^5666181013 is an apocalyptic number.

It is an amenable number.

5666181013 is a deficient number, since it is larger than the sum of its proper divisors (1).

5666181013 is an equidigital number, since it uses as much as digits as its factorization.

5666181013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 5666181013 is about 75274.0394359171. The cubic root of 5666181013 is about 1782.7761473987.

Adding to 5666181013 its reverse (3101816665), we get a palindrome (8767997678).

The spelling of 5666181013 in words is "five billion, six hundred sixty-six million, one hundred eighty-one thousand, thirteen".