11100040044 has 192 divisors, whose sum is σ = 28896860160. Its totient is φ = 3301908480.

The previous prime is 11100039991. The next prime is 11100040069. The reversal of 11100040044 is 44004000111.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 70700814 + ... + 70700970.

It is an arithmetic number, because the mean of its divisors is an integer number (150504480).

Almost surely, 2^11100040044 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11100040044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14448430080).

11100040044 is an abundant number, since it is smaller than the sum of its proper divisors (17796820116).

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

11100040044 is a wasteful number, since it uses less digits than its factorization.

11100040044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408 (or 406 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 11100040044 its reverse (44004000111), we get a palindrome (55104040155).

The spelling of 11100040044 in words is "eleven billion, one hundred million, forty thousand, forty-four".