111810643536 has 80 divisors (see below), whose sum is σ = 291331702784. Its totient is φ = 36949675392.

The previous prime is 111810643531. The next prime is 111810643579. The reversal of 111810643536 is 635346018111.

It is a junction number, because it is equal to n+sod(n) for n = 111810643494 and 111810643503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111810643531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9400185 + ... + 9412071.

Almost surely, 2^111810643536 is an apocalyptic number.

111810643536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

111810643536 is an abundant number, since it is smaller than the sum of its proper divisors (179521059248).

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

111810643536 is a wasteful number, since it uses less digits than its factorization.

111810643536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13568 (or 13562 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The spelling of 111810643536 in words is "one hundred eleven billion, eight hundred ten million, six hundred forty-three thousand, five hundred thirty-six".