20568465351011 has 2 divisors, whose sum is σ = 20568465351012. Its totient is φ = 20568465351010.

The previous prime is 20568465350963. The next prime is 20568465351019. The reversal of 20568465351011 is 11015356486502.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20568465351011 - 2¹⁰ = 20568465349987 is a prime.

It is not a weakly prime, because it can be changed into another prime (20568465351019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10284232675505 + 10284232675506.

It is an arithmetic number, because the mean of its divisors is an integer number (10284232675506).

Almost surely, 2^{20568465351011} is an apocalyptic number.

20568465351011 is a deficient number, since it is larger than the sum of its proper divisors (1).

20568465351011 is an equidigital number, since it uses as much as digits as its factorization.

20568465351011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864000, while the sum is 47.

The spelling of 20568465351011 in words is "twenty trillion, five hundred sixty-eight billion, four hundred sixty-five million, three hundred fifty-one thousand, eleven".