6661116103063 has 2 divisors, whose sum is σ = 6661116103064. Its totient is φ = 6661116103062.

The previous prime is 6661116103049. The next prime is 6661116103067. The reversal of 6661116103063 is 3603016111666.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6661116103063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6661116103067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3330558051531 + 3330558051532.

It is an arithmetic number, because the mean of its divisors is an integer number (3330558051532).

Almost surely, 2^{6661116103063} is an apocalyptic number.

6661116103063 is a deficient number, since it is larger than the sum of its proper divisors (1).

6661116103063 is an equidigital number, since it uses as much as digits as its factorization.

6661116103063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69984, while the sum is 40.

The spelling of 6661116103063 in words is "six trillion, six hundred sixty-one billion, one hundred sixteen million, one hundred three thousand, sixty-three".