11550319144 has 64 divisors (see below), whose sum is σ = 26735667840. Its totient is φ = 4555457280.

The previous prime is 11550319133. The next prime is 11550319153. The reversal of 11550319144 is 44191305511.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 217002 + ... + 264934.

It is an arithmetic number, because the mean of its divisors is an integer number (417744810).

Almost surely, 2^11550319144 is an apocalyptic number.

11550319144 is a gapful number since it is divisible by the number (14) 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 11550319144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13367833920).

11550319144 is an abundant number, since it is smaller than the sum of its proper divisors (15185348696).

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

11550319144 is a wasteful number, since it uses less digits than its factorization.

11550319144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48290 (or 48286 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 34.

The spelling of 11550319144 in words is "eleven billion, five hundred fifty million, three hundred nineteen thousand, one hundred forty-four".