20411202640063 has 2 divisors, whose sum is σ = 20411202640064. Its totient is φ = 20411202640062.

The previous prime is 20411202639901. The next prime is 20411202640141. The reversal of 20411202640063 is 36004620211402.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20411202640063 is a prime.

It is a super-2 number, since 2×20411202640063² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20411202643063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10205601320031 + 10205601320032.

It is an arithmetic number, because the mean of its divisors is an integer number (10205601320032).

Almost surely, 2^{20411202640063} is an apocalyptic number.

20411202640063 is a deficient number, since it is larger than the sum of its proper divisors (1).

20411202640063 is an equidigital number, since it uses as much as digits as its factorization.

20411202640063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 20411202640063 its reverse (36004620211402), we get a palindrome (56415822851465).

The spelling of 20411202640063 in words is "twenty trillion, four hundred eleven billion, two hundred two million, six hundred forty thousand, sixty-three".