11511649896 has 16 divisors (see below), whose sum is σ = 28779124800. Its totient is φ = 3837216624.

The previous prime is 11511649883. The next prime is 11511649907. The reversal of 11511649896 is 69894611511.

11511649896 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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, 239826016 + ... + 239826063.

It is an arithmetic number, because the mean of its divisors is an integer number (1798695300).

Almost surely, 2^11511649896 is an apocalyptic number.

It is an amenable number.

11511649896 is an abundant number, since it is smaller than the sum of its proper divisors (17267474904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11511649896 is a wasteful number, since it uses less digits than its factorization.

11511649896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479652088 (or 479652084 counting only the distinct ones).

The product of its digits is 466560, while the sum is 51.

The spelling of 11511649896 in words is "eleven billion, five hundred eleven million, six hundred forty-nine thousand, eight hundred ninety-six".