111115697616 has 400 divisors, whose sum is σ = 406966095360. Its totient is φ = 28428744960.

The previous prime is 111115697599. The next prime is 111115697639. The reversal of 111115697616 is 616796511111.

111115697616 is a `hidden beast` number, since 1 + 1 + 1 + 1 + 1 + 569 + 76 + 16 = 666.

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, 6677755 + ... + 6694373.

Almost surely, 2^111115697616 is an apocalyptic number.

111115697616 is a gapful number since it is divisible by the number (16) 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 111115697616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203483047680).

111115697616 is an abundant number, since it is smaller than the sum of its proper divisors (295850397744).

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

111115697616 is a wasteful number, since it uses less digits than its factorization.

111115697616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16724 (or 16709 counting only the distinct ones).

The product of its digits is 68040, while the sum is 45.

The spelling of 111115697616 in words is "one hundred eleven billion, one hundred fifteen million, six hundred ninety-seven thousand, six hundred sixteen".