636817340011 has 2 divisors, whose sum is σ = 636817340012. Its totient is φ = 636817340010.

The previous prime is 636817339859. The next prime is 636817340017. The reversal of 636817340011 is 110043718636.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 636817340011 - 2¹⁷ = 636817208939 is a prime.

It is not a weakly prime, because it can be changed into another prime (636817340017) 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, 318408670005 + 318408670006.

It is an arithmetic number, because the mean of its divisors is an integer number (318408670006).

Almost surely, 2^636817340011 is an apocalyptic number.

636817340011 is a deficient number, since it is larger than the sum of its proper divisors (1).

636817340011 is an equidigital number, since it uses as much as digits as its factorization.

636817340011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 40.

The spelling of 636817340011 in words is "six hundred thirty-six billion, eight hundred seventeen million, three hundred forty thousand, eleven".