11568588649 has 16 divisors (see below), whose sum is σ = 12138250240. Its totient is φ = 11012274000.

The previous prime is 11568588643. The next prime is 11568588749. The reversal of 11568588649 is 94688586511.

11568588649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 11568588649 - 2⁹ = 11568588137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11568588643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 654964 + ... + 672394.

It is an arithmetic number, because the mean of its divisors is an integer number (758640640).

Almost surely, 2^11568588649 is an apocalyptic number.

It is an amenable number.

11568588649 is a deficient number, since it is larger than the sum of its proper divisors (569661591).

11568588649 is a wasteful number, since it uses less digits than its factorization.

11568588649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17812.

The product of its digits is 16588800, while the sum is 61.

The spelling of 11568588649 in words is "eleven billion, five hundred sixty-eight million, five hundred eighty-eight thousand, six hundred forty-nine".