5616566566069 has 2 divisors, whose sum is σ = 5616566566070. Its totient is φ = 5616566566068.

The previous prime is 5616566566049. The next prime is 5616566566153. The reversal of 5616566566069 is 9606656656165.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5511869021169 + 104697544900 = 2347737^2 + 323570^2 .

It is a cyclic number.

It is not a de Polignac number, because 5616566566069 - 2⁹ = 5616566565557 is a prime.

It is a super-2 number, since 2×5616566566069² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5616566565995 and 5616566566013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5616566566049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2808283283034 + 2808283283035.

It is an arithmetic number, because the mean of its divisors is an integer number (2808283283035).

Almost surely, 2^{5616566566069} is an apocalyptic number.

It is an amenable number.

5616566566069 is a deficient number, since it is larger than the sum of its proper divisors (1).

5616566566069 is an equidigital number, since it uses as much as digits as its factorization.

5616566566069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 314928000, while the sum is 67.

The spelling of 5616566566069 in words is "five trillion, six hundred sixteen billion, five hundred sixty-six million, five hundred sixty-six thousand, sixty-nine".