11085149880 has 576 divisors, whose sum is σ = 45240698880. Its totient is φ = 2303078400.

The previous prime is 11085149861. The next prime is 11085149893. The reversal of 11085149880 is 8894158011.

11085149880 is a `hidden beast` number, since 1 + 1 + 0 + 85 + 1 + 498 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 22576435 + ... + 22576925.

It is an arithmetic number, because the mean of its divisors is an integer number (78542880).

Almost surely, 2^11085149880 is an apocalyptic number.

11085149880 is a gapful number since it is divisible by the number (10) 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 11085149880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22620349440).

11085149880 is an abundant number, since it is smaller than the sum of its proper divisors (34155549000).

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

11085149880 is a wasteful number, since it uses less digits than its factorization.

11085149880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580 (or 556 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 45.

The spelling of 11085149880 in words is "eleven billion, eighty-five million, one hundred forty-nine thousand, eight hundred eighty".