11085885616 has 80 divisors (see below), whose sum is σ = 24428124000. Its totient is φ = 4831432704.

The previous prime is 11085885583. The next prime is 11085885619. The reversal of 11085885616 is 61658858011.

It is a self number, because there is not a number n which added to its sum of digits gives 11085885616.

It is not an unprimeable number, because it can be changed into a prime (11085885619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1248360 + ... + 1257208.

It is an arithmetic number, because the mean of its divisors is an integer number (305351550).

Almost surely, 2^11085885616 is an apocalyptic number.

11085885616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11085885616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12214062000).

11085885616 is an abundant number, since it is smaller than the sum of its proper divisors (13342238384).

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

11085885616 is a wasteful number, since it uses less digits than its factorization.

11085885616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9206 (or 9200 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 49.

The spelling of 11085885616 in words is "eleven billion, eighty-five million, eight hundred eighty-five thousand, six hundred sixteen".