11511700056 has 48 divisors (see below), whose sum is σ = 31293475200. Its totient is φ = 3822962112.

The previous prime is 11511700049. The next prime is 11511700121. The reversal of 11511700056 is 65000711511.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 277816 + ... + 316551.

It is an arithmetic number, because the mean of its divisors is an integer number (651947400).

Almost surely, 2^11511700056 is an apocalyptic number.

It is an amenable number.

11511700056 is an abundant number, since it is smaller than the sum of its proper divisors (19781775144).

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

11511700056 is a wasteful number, since it uses less digits than its factorization.

11511700056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594648 (or 594641 counting only the distinct ones).

The product of its (nonzero) digits is 1050, while the sum is 27.

The spelling of 11511700056 in words is "eleven billion, five hundred eleven million, seven hundred thousand, fifty-six".