244566640009 has 2 divisors, whose sum is σ = 244566640010. Its totient is φ = 244566640008.

The previous prime is 244566640001. The next prime is 244566640027. The reversal of 244566640009 is 900046665442.

244566640009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 236774694025 + 7791945984 = 486595^2 + 88272^2 .

It is a cyclic number.

It is not a de Polignac number, because 244566640009 - 2³ = 244566640001 is a prime.

It is not a weakly prime, because it can be changed into another prime (244566640001) 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, 122283320004 + 122283320005.

It is an arithmetic number, because the mean of its divisors is an integer number (122283320005).

Almost surely, 2^244566640009 is an apocalyptic number.

It is an amenable number.

244566640009 is a deficient number, since it is larger than the sum of its proper divisors (1).

244566640009 is an equidigital number, since it uses as much as digits as its factorization.

244566640009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1244160, while the sum is 46.

The spelling of 244566640009 in words is "two hundred forty-four billion, five hundred sixty-six million, six hundred forty thousand, nine".