11099784528 has 120 divisors (see below), whose sum is σ = 35833831488. Its totient is φ = 3141697536.

The previous prime is 11099784497. The next prime is 11099784533. The reversal of 11099784528 is 82548799011.

It is a happy number.

11099784528 is a `hidden beast` number, since 1 + 109 + 9 + 7 + 8 + 4 + 528 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56400 + ... + 159312.

Almost surely, 2^11099784528 is an apocalyptic number.

11099784528 is a gapful number since it is divisible by the number (18) 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 11099784528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17916915744).

11099784528 is an abundant number, since it is smaller than the sum of its proper divisors (24734046960).

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

11099784528 is a wasteful number, since it uses less digits than its factorization.

11099784528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103041 (or 103032 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 54.

The spelling of 11099784528 in words is "eleven billion, ninety-nine million, seven hundred eighty-four thousand, five hundred twenty-eight".