11155879488 has 224 divisors, whose sum is σ = 33969187840. Its totient is φ = 3202467840.

The previous prime is 11155879487. The next prime is 11155879549. The reversal of 11155879488 is 88497855111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (11155879481) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3175653 + ... + 3179163.

It is an arithmetic number, because the mean of its divisors is an integer number (151648160).

Almost surely, 2^11155879488 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 11155879488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16984593920).

11155879488 is an abundant number, since it is smaller than the sum of its proper divisors (22813308352).

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

11155879488 is a wasteful number, since it uses less digits than its factorization.

11155879488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3625 (or 3615 counting only the distinct ones).

The product of its digits is 3225600, while the sum is 57.

The spelling of 11155879488 in words is "eleven billion, one hundred fifty-five million, eight hundred seventy-nine thousand, four hundred eighty-eight".