5999644851181 has 2 divisors, whose sum is σ = 5999644851182. Its totient is φ = 5999644851180.

The previous prime is 5999644851143. The next prime is 5999644851229. The reversal of 5999644851181 is 1811584469995.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5469325918281 + 530318932900 = 2338659^2 + 728230^2 .

It is a cyclic number.

It is not a de Polignac number, because 5999644851181 - 2⁹ = 5999644850669 is a prime.

It is a super-2 number, since 2×5999644851181² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 5999644851181.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5999644851881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2999822425590 + 2999822425591.

It is an arithmetic number, because the mean of its divisors is an integer number (2999822425591).

Almost surely, 2^{5999644851181} is an apocalyptic number.

It is an amenable number.

5999644851181 is a deficient number, since it is larger than the sum of its proper divisors (1).

5999644851181 is an equidigital number, since it uses as much as digits as its factorization.

5999644851181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 111974400, while the sum is 70.

The spelling of 5999644851181 in words is "five trillion, nine hundred ninety-nine billion, six hundred forty-four million, eight hundred fifty-one thousand, one hundred eighty-one".