111765386040 has 256 divisors, whose sum is σ = 418286592000. Its totient is φ = 23209812480.

The previous prime is 111765386017. The next prime is 111765386059. The reversal of 111765386040 is 40683567111.

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

It is a junction number, because it is equal to n+sod(n) for n = 111765385983 and 111765386001.

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, 22718701 + ... + 22723619.

It is an arithmetic number, because the mean of its divisors is an integer number (1633932000).

Almost surely, 2^111765386040 is an apocalyptic number.

111765386040 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 111765386040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209143296000).

111765386040 is an abundant number, since it is smaller than the sum of its proper divisors (306521205960).

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

111765386040 is a wasteful number, since it uses less digits than its factorization.

111765386040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7410 (or 7406 counting only the distinct ones).

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

The spelling of 111765386040 in words is "one hundred eleven billion, seven hundred sixty-five million, three hundred eighty-six thousand, forty".