111680536 has 32 divisors (see below), whose sum is σ = 228847680. Its totient is φ = 50672800.

The previous prime is 111680533. The next prime is 111680539. The reversal of 111680536 is 635086111.

It is an interprime number because it is at equal distance from previous prime (111680533) and next prime (111680539).

It is a junction number, because it is equal to n+sod(n) for n = 111680498 and 111680507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111680533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84795 + ... + 86101.

It is an arithmetic number, because the mean of its divisors is an integer number (7151490).

Almost surely, 2^111680536 is an apocalyptic number.

It is an amenable number.

111680536 is an abundant number, since it is smaller than the sum of its proper divisors (117167144).

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

111680536 is a wasteful number, since it uses less digits than its factorization.

111680536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2295 (or 2291 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 111680536 is about 10567.9012107419. The cubic root of 111680536 is about 481.5697106258.

The spelling of 111680536 in words is "one hundred eleven million, six hundred eighty thousand, five hundred thirty-six".