111899074560 has 448 divisors, whose sum is σ = 440727340032. Its totient is φ = 23607115776.

The previous prime is 111899074559. The next prime is 111899074589. The reversal of 111899074560 is 65470998111.

It is a tau number, because it is divible by the number of its divisors (448).

It is a congruent number.

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, 11177077 + ... + 11187083.

It is an arithmetic number, because the mean of its divisors is an integer number (983766384).

Almost surely, 2^111899074560 is an apocalyptic number.

111899074560 is a gapful number since it is divisible by the number (10) 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 111899074560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220363670016).

111899074560 is an abundant number, since it is smaller than the sum of its proper divisors (328828265472).

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

111899074560 is a wasteful number, since it uses less digits than its factorization.

111899074560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10061 (or 10037 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 51.

The spelling of 111899074560 in words is "one hundred eleven billion, eight hundred ninety-nine million, seventy-four thousand, five hundred sixty".