111988658341672 has 32 divisors (see below), whose sum is σ = 240073287508800. Its totient is φ = 47975621076864.

The previous prime is 111988658341627. The next prime is 111988658341697. The reversal of 111988658341672 is 276143856889111.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 406490493 + ... + 406765900.

It is an arithmetic number, because the mean of its divisors is an integer number (7502290234650).

Almost surely, 2^{111988658341672} is an apocalyptic number.

It is an amenable number.

111988658341672 is an abundant number, since it is smaller than the sum of its proper divisors (128084629167128).

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

111988658341672 is a wasteful number, since it uses less digits than its factorization.

111988658341672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813258865 (or 813258861 counting only the distinct ones).

The product of its digits is 139345920, while the sum is 70.

The spelling of 111988658341672 in words is "one hundred eleven trillion, nine hundred eighty-eight billion, six hundred fifty-eight million, three hundred forty-one thousand, six hundred seventy-two".