11009638056 has 64 divisors (see below), whose sum is σ = 29158980480. Its totient is φ = 3452129280.

The previous prime is 11009638033. The next prime is 11009638061. The reversal of 11009638056 is 65083690011.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 875445 + ... + 887931.

It is an arithmetic number, because the mean of its divisors is an integer number (455609070).

Almost surely, 2^11009638056 is an apocalyptic number.

It is an amenable number.

11009638056 is an abundant number, since it is smaller than the sum of its proper divisors (18149342424).

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

11009638056 is a wasteful number, since it uses less digits than its factorization.

11009638056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14674 (or 14670 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 39.

The spelling of 11009638056 in words is "eleven billion, nine million, six hundred thirty-eight thousand, fifty-six".