20104463612663 has 2 divisors, whose sum is σ = 20104463612664. Its totient is φ = 20104463612662.

The previous prime is 20104463612641. The next prime is 20104463612729. The reversal of 20104463612663 is 36621636440102.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20104463612663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20104463012663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10052231806331 + 10052231806332.

It is an arithmetic number, because the mean of its divisors is an integer number (10052231806332).

Almost surely, 2^{20104463612663} is an apocalyptic number.

20104463612663 is a deficient number, since it is larger than the sum of its proper divisors (1).

20104463612663 is an equidigital number, since it uses as much as digits as its factorization.

20104463612663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 746496, while the sum is 44.

The spelling of 20104463612663 in words is "twenty trillion, one hundred four billion, four hundred sixty-three million, six hundred twelve thousand, six hundred sixty-three".