11511807085 has 32 divisors (see below), whose sum is σ = 14399596800. Its totient is φ = 8824327680.

The previous prime is 11511807067. The next prime is 11511807107. The reversal of 11511807085 is 58070811511.

11511807085 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11511807085 - 2⁵ = 11511807053 is a prime.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 14627062 + ... + 14627848.

It is an arithmetic number, because the mean of its divisors is an integer number (449987400).

Almost surely, 2^11511807085 is an apocalyptic number.

It is an amenable number.

11511807085 is a deficient number, since it is larger than the sum of its proper divisors (2887789715).

11511807085 is a wasteful number, since it uses less digits than its factorization.

11511807085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1461.

The product of its (nonzero) digits is 11200, while the sum is 37.

The spelling of 11511807085 in words is "eleven billion, five hundred eleven million, eight hundred seven thousand, eighty-five".