111680487228 has 12 divisors (see below), whose sum is σ = 260587803560. Its totient is φ = 37226829072.

The previous prime is 111680487203. The next prime is 111680487229. The reversal of 111680487228 is 822784086111.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×111680487228² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111680487229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4653353623 + ... + 4653353646.

Almost surely, 2^111680487228 is an apocalyptic number.

It is an amenable number.

111680487228 is an abundant number, since it is smaller than the sum of its proper divisors (148907316332).

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

111680487228 is a wasteful number, since it uses less digits than its factorization.

111680487228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9306707276 (or 9306707274 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 48.

The spelling of 111680487228 in words is "one hundred eleven billion, six hundred eighty million, four hundred eighty-seven thousand, two hundred twenty-eight".