111600720 has 480 divisors, whose sum is σ = 490801920. Its totient is φ = 22809600.

The previous prime is 111600703. The next prime is 111600739. The reversal of 111600720 is 27006111.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 111600693 and 111600702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1829490 + ... + 1829550.

It is an arithmetic number, because the mean of its divisors is an integer number (1022504).

Almost surely, 2^111600720 is an apocalyptic number.

111600720 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 111600720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (245400960).

111600720 is an abundant number, since it is smaller than the sum of its proper divisors (379201200).

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

111600720 is a wasteful number, since it uses less digits than its factorization.

111600720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112 (or 89 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 18.

The square root of 111600720 is about 10564.1241946505. The cubic root of 111600720 is about 481.4549603158.

Adding to 111600720 its reverse (27006111), we get a palindrome (138606831).

The spelling of 111600720 in words is "one hundred eleven million, six hundred thousand, seven hundred twenty".