20004356636111 has 2 divisors, whose sum is σ = 20004356636112. Its totient is φ = 20004356636110.

The previous prime is 20004356636093. The next prime is 20004356636189. The reversal of 20004356636111 is 11163665340002.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20004356636111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20004356632111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10002178318055 + 10002178318056.

It is an arithmetic number, because the mean of its divisors is an integer number (10002178318056).

Almost surely, 2^{20004356636111} is an apocalyptic number.

20004356636111 is a deficient number, since it is larger than the sum of its proper divisors (1).

20004356636111 is an equidigital number, since it uses as much as digits as its factorization.

20004356636111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 38.

The spelling of 20004356636111 in words is "twenty trillion, four billion, three hundred fifty-six million, six hundred thirty-six thousand, one hundred eleven".