111709870272 has 672 divisors, whose sum is σ = 431984017920. Its totient is φ = 26654883840.

The previous prime is 111709870243. The next prime is 111709870273. The reversal of 111709870272 is 272078907111.

It is a tau number, because it is divible by the number of its divisors (672).

It is not an unprimeable number, because it can be changed into a prime (111709870273) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 180467979 + ... + 180468597.

It is an arithmetic number, because the mean of its divisors is an integer number (642833360).

Almost surely, 2^111709870272 is an apocalyptic number.

111709870272 is a gapful number since it is divisible by the number (12) 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 111709870272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215992008960).

111709870272 is an abundant number, since it is smaller than the sum of its proper divisors (320274147648).

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

111709870272 is a wasteful number, since it uses less digits than its factorization.

111709870272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 981 (or 968 counting only the distinct ones).

The product of its (nonzero) digits is 98784, while the sum is 45.

The spelling of 111709870272 in words is "one hundred eleven billion, seven hundred nine million, eight hundred seventy thousand, two hundred seventy-two".