11648436659 has 4 divisors (see below), whose sum is σ = 11648657904. Its totient is φ = 11648215416.

The previous prime is 11648436643. The next prime is 11648436689. The reversal of 11648436659 is 95663484611.

11648436659 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95663484611 = 1019 ⋅93879769.

It is a cyclic number.

It is not a de Polignac number, because 11648436659 - 2⁴ = 11648436643 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11648436659.

It is not an unprimeable number, because it can be changed into a prime (11648436629) 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 3 ways as a sum of consecutive naturals, for example, 18914 + ... + 153800.

It is an arithmetic number, because the mean of its divisors is an integer number (2912164476).

Almost surely, 2^11648436659 is an apocalyptic number.

11648436659 is a deficient number, since it is larger than the sum of its proper divisors (221245).

11648436659 is an equidigital number, since it uses as much as digits as its factorization.

11648436659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221244.

The product of its digits is 3732480, while the sum is 53.

The spelling of 11648436659 in words is "eleven billion, six hundred forty-eight million, four hundred thirty-six thousand, six hundred fifty-nine".