20768161248041 has 2 divisors, whose sum is σ = 20768161248042. Its totient is φ = 20768161248040.

The previous prime is 20768161247971. The next prime is 20768161248067. The reversal of 20768161248041 is 14084216186702.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20767297123225 + 864124816 = 4557115^2 + 29396^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20768161248041 is a prime.

It is not a weakly prime, because it can be changed into another prime (20768161248071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10384080624020 + 10384080624021.

It is an arithmetic number, because the mean of its divisors is an integer number (10384080624021).

Almost surely, 2^{20768161248041} is an apocalyptic number.

It is an amenable number.

20768161248041 is a deficient number, since it is larger than the sum of its proper divisors (1).

20768161248041 is an equidigital number, since it uses as much as digits as its factorization.

20768161248041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1032192, while the sum is 50.

The spelling of 20768161248041 in words is "twenty trillion, seven hundred sixty-eight billion, one hundred sixty-one million, two hundred forty-eight thousand, forty-one".