6244655623663 has 2 divisors, whose sum is σ = 6244655623664. Its totient is φ = 6244655623662.

The previous prime is 6244655623561. The next prime is 6244655623673. The reversal of 6244655623663 is 3663265564426.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6244655623663 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6244655623598 and 6244655623607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6244655623673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3122327811831 + 3122327811832.

It is an arithmetic number, because the mean of its divisors is an integer number (3122327811832).

Almost surely, 2^{6244655623663} is an apocalyptic number.

6244655623663 is a deficient number, since it is larger than the sum of its proper divisors (1).

6244655623663 is an equidigital number, since it uses as much as digits as its factorization.

6244655623663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 111974400, while the sum is 58.

The spelling of 6244655623663 in words is "six trillion, two hundred forty-four billion, six hundred fifty-five million, six hundred twenty-three thousand, six hundred sixty-three".