11099835720 has 384 divisors, whose sum is σ = 39693888000. Its totient is φ = 2679920640.

The previous prime is 11099835709. The next prime is 11099835749. The reversal of 11099835720 is 2753899011.

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

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 15437521 + ... + 15438239.

It is an arithmetic number, because the mean of its divisors is an integer number (103369500).

Almost surely, 2^11099835720 is an apocalyptic number.

11099835720 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 11099835720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19846944000).

11099835720 is an abundant number, since it is smaller than the sum of its proper divisors (28594052280).

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

11099835720 is a wasteful number, since it uses less digits than its factorization.

11099835720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 853 (or 846 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 45.

The spelling of 11099835720 in words is "eleven billion, ninety-nine million, eight hundred thirty-five thousand, seven hundred twenty".