111091868004 has 96 divisors (see below), whose sum is σ = 286920385920. Its totient is φ = 33243724800.

The previous prime is 111091867981. The next prime is 111091868023. The reversal of 111091868004 is 400868190111.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 781339 + ... + 912509.

It is an arithmetic number, because the mean of its divisors is an integer number (2988754020).

Almost surely, 2^111091868004 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 111091868004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143460192960).

111091868004 is an abundant number, since it is smaller than the sum of its proper divisors (175828517916).

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

111091868004 is a wasteful number, since it uses less digits than its factorization.

111091868004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131341 (or 131339 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 39.

The spelling of 111091868004 in words is "one hundred eleven billion, ninety-one million, eight hundred sixty-eight thousand, four".