20411552036563 has 2 divisors, whose sum is σ = 20411552036564. Its totient is φ = 20411552036562.

The previous prime is 20411552036489. The next prime is 20411552036581. The reversal of 20411552036563 is 36563025511402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20411552036563 - 2²¹ = 20411549939411 is a prime.

It is not a weakly prime, because it can be changed into another prime (20411552036363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10205776018281 + 10205776018282.

It is an arithmetic number, because the mean of its divisors is an integer number (10205776018282).

Almost surely, 2^{20411552036563} is an apocalyptic number.

20411552036563 is a deficient number, since it is larger than the sum of its proper divisors (1).

20411552036563 is an equidigital number, since it uses as much as digits as its factorization.

20411552036563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648000, while the sum is 43.

Adding to 20411552036563 its reverse (36563025511402), we get a palindrome (56974577547965).

The spelling of 20411552036563 in words is "twenty trillion, four hundred eleven billion, five hundred fifty-two million, thirty-six thousand, five hundred sixty-three".