11556646650607 has 2 divisors, whose sum is σ = 11556646650608. Its totient is φ = 11556646650606.

The previous prime is 11556646650599. The next prime is 11556646650649. The reversal of 11556646650607 is 70605664665511.

It is a weak prime.

It is an emirp because it is prime and its reverse (70605664665511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11556646650607 - 2³ = 11556646650599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11556646650667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5778323325303 + 5778323325304.

It is an arithmetic number, because the mean of its divisors is an integer number (5778323325304).

Almost surely, 2^{11556646650607} is an apocalyptic number.

11556646650607 is a deficient number, since it is larger than the sum of its proper divisors (1).

11556646650607 is an equidigital number, since it uses as much as digits as its factorization.

11556646650607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216000, while the sum is 58.

The spelling of 11556646650607 in words is "eleven trillion, five hundred fifty-six billion, six hundred forty-six million, six hundred fifty thousand, six hundred seven".