5566277615617 has 2 divisors, whose sum is σ = 5566277615618. Its totient is φ = 5566277615616.

The previous prime is 5566277615599. The next prime is 5566277615627. The reversal of 5566277615617 is 7165167726655.

It is a Cunningham number, because it is equal to 1536⁴+1.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5566277615616 + 1 = 2359296^2 + 1^2 .

It is a cyclic number.

It is not a de Polignac number, because 5566277615617 - 2⁷ = 5566277615489 is a prime.

It is not a weakly prime, because it can be changed into another prime (5566277615627) by changing a digit.

It is a Pierpont prime, being equal to 2³⁶ ⋅ 3⁴ + 1.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2783138807808 + 2783138807809.

It is an arithmetic number, because the mean of its divisors is an integer number (2783138807809).

It is a Proth number, since it is equal to 81 ⋅ 2³⁶ + 1 and 81 < 2³⁶.

Almost surely, 2^{5566277615617} is an apocalyptic number.

It is an amenable number.

5566277615617 is a deficient number, since it is larger than the sum of its proper divisors (1).

5566277615617 is an equidigital number, since it uses as much as digits as its factorization.

5566277615617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 111132000, while the sum is 64.

The spelling of 5566277615617 in words is "five trillion, five hundred sixty-six billion, two hundred seventy-seven million, six hundred fifteen thousand, six hundred seventeen".