5666655251143 has 2 divisors, whose sum is σ = 5666655251144. Its totient is φ = 5666655251142.

The previous prime is 5666655251087. The next prime is 5666655251219. The reversal of 5666655251143 is 3411525566665.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5666655251143 - 2²⁹ = 5666118380231 is a prime.

It is a super-2 number, since 2×5666655251143² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5666655251443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2833327625571 + 2833327625572.

It is an arithmetic number, because the mean of its divisors is an integer number (2833327625572).

Almost surely, 2^{5666655251143} is an apocalyptic number.

5666655251143 is a deficient number, since it is larger than the sum of its proper divisors (1).

5666655251143 is an equidigital number, since it uses as much as digits as its factorization.

5666655251143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440000, while the sum is 55.

The spelling of 5666655251143 in words is "five trillion, six hundred sixty-six billion, six hundred fifty-five million, two hundred fifty-one thousand, one hundred forty-three".