111863625720 has 256 divisors, whose sum is σ = 418933555200. Its totient is φ = 23214696960.

The previous prime is 111863625701. The next prime is 111863625737. The reversal of 111863625720 is 27526368111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7634161 + ... + 7648799.

It is an arithmetic number, because the mean of its divisors is an integer number (1636459200).

Almost surely, 2^111863625720 is an apocalyptic number.

111863625720 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 111863625720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209466777600).

111863625720 is an abundant number, since it is smaller than the sum of its proper divisors (307069929480).

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

111863625720 is a wasteful number, since it uses less digits than its factorization.

111863625720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15498 (or 15494 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 42.

The spelling of 111863625720 in words is "one hundred eleven billion, eight hundred sixty-three million, six hundred twenty-five thousand, seven hundred twenty".