11111109984 has 192 divisors, whose sum is σ = 35474604480. Its totient is φ = 3362549760.

The previous prime is 11111109941. The next prime is 11111110013. The reversal of 11111109984 is 48990111111.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 677044 + ... + 693260.

It is an arithmetic number, because the mean of its divisors is an integer number (184763565).

Almost surely, 2^11111109984 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 11111109984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17737302240).

11111109984 is an abundant number, since it is smaller than the sum of its proper divisors (24363494496).

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

11111109984 is a wasteful number, since it uses less digits than its factorization.

11111109984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16310 (or 16296 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 36.

The spelling of 11111109984 in words is "eleven billion, one hundred eleven million, one hundred nine thousand, nine hundred eighty-four".