11305806216 has 32 divisors (see below), whose sum is σ = 29493408960. Its totient is φ = 3604749632.

The previous prime is 11305806199. The next prime is 11305806229. The reversal of 11305806216 is 61260850311.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10240215 + ... + 10241318.

It is an arithmetic number, because the mean of its divisors is an integer number (921669030).

Almost surely, 2^11305806216 is an apocalyptic number.

It is an amenable number.

11305806216 is an abundant number, since it is smaller than the sum of its proper divisors (18187602744).

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

11305806216 is a wasteful number, since it uses less digits than its factorization.

11305806216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20481565 (or 20481561 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The spelling of 11305806216 in words is "eleven billion, three hundred five million, eight hundred six thousand, two hundred sixteen".