111297985848 has 320 divisors, whose sum is σ = 389405491200. Its totient is φ = 28962800640.

The previous prime is 111297985787. The next prime is 111297985871. The reversal of 111297985848 is 848589792111.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2367193 + ... + 2413751.

It is an arithmetic number, because the mean of its divisors is an integer number (1216892160).

Almost surely, 2^111297985848 is an apocalyptic number.

111297985848 is a gapful number since it is divisible by the number (18) 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 111297985848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194702745600).

111297985848 is an abundant number, since it is smaller than the sum of its proper divisors (278107505352).

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

111297985848 is a wasteful number, since it uses less digits than its factorization.

111297985848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46632 (or 46619 counting only the distinct ones).

The product of its digits is 11612160, while the sum is 63.

The spelling of 111297985848 in words is "one hundred eleven billion, two hundred ninety-seven million, nine hundred eighty-five thousand, eight hundred forty-eight".