11181337344 has 216 divisors, whose sum is σ = 33060776112. Its totient is φ = 3633315840.

The previous prime is 11181337339. The next prime is 11181337357. The reversal of 11181337344 is 44373318111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 11181337299 and 11181337308.

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, 17443264 + ... + 17443904.

Almost surely, 2^11181337344 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 11181337344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16530388056).

11181337344 is an abundant number, since it is smaller than the sum of its proper divisors (21879438768).

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

11181337344 is a wasteful number, since it uses less digits than its factorization.

11181337344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843 (or 826 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The spelling of 11181337344 in words is "eleven billion, one hundred eighty-one million, three hundred thirty-seven thousand, three hundred forty-four".