111699975188736 has 648 divisors, whose sum is σ = 375022750971960. Its totient is φ = 31840303841280.

The previous prime is 111699975188731. The next prime is 111699975188743. The reversal of 111699975188736 is 637881579996111.

111699975188736 is a `hidden beast` number, since 1 + 1 + 1 + 6 + 9 + 9 + 97 + 518 + 8 + 7 + 3 + 6 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 24754047918336 + 86945927270400 = 4975344^2 + 9324480^2 .

It is not an unprimeable number, because it can be changed into a prime (111699975188731) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 10772487360 + ... + 10772497728.

Almost surely, 2^{111699975188736} is an apocalyptic number.

111699975188736 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 111699975188736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187511375485980).

111699975188736 is an abundant number, since it is smaller than the sum of its proper divisors (263322775783224).

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

111699975188736 is a wasteful number, since it uses less digits than its factorization.

111699975188736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12703 (or 12675 counting only the distinct ones).

The product of its digits is 1234517760, while the sum is 81.

The spelling of 111699975188736 in words is "one hundred eleven trillion, six hundred ninety-nine billion, nine hundred seventy-five million, one hundred eighty-eight thousand, seven hundred thirty-six".