56663266236659 has 2 divisors, whose sum is σ = 56663266236660. Its totient is φ = 56663266236658.

The previous prime is 56663266236569. The next prime is 56663266236691. The reversal of 56663266236659 is 95663266236665.

It is a happy number.

Together with previous prime (56663266236569) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56663266236659 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56663266236592 and 56663266236601.

It is not a weakly prime, because it can be changed into another prime (56663266236359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28331633118329 + 28331633118330.

It is an arithmetic number, because the mean of its divisors is an integer number (28331633118330).

Almost surely, 2^{56663266236659} is an apocalyptic number.

56663266236659 is a deficient number, since it is larger than the sum of its proper divisors (1).

56663266236659 is an equidigital number, since it uses as much as digits as its factorization.

56663266236659 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2267481600, while the sum is 71.

The spelling of 56663266236659 in words is "fifty-six trillion, six hundred sixty-three billion, two hundred sixty-six million, two hundred thirty-six thousand, six hundred fifty-nine".