111977659228 has 24 divisors (see below), whose sum is σ = 206293767120. Its totient is φ = 53037129600.

The previous prime is 111977659223. The next prime is 111977659253. The reversal of 111977659228 is 822956779111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111977659223) 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 7 ways as a sum of consecutive naturals, for example, 834450 + ... + 959302.

It is an arithmetic number, because the mean of its divisors is an integer number (8595573630).

Almost surely, 2^111977659228 is an apocalyptic number.

It is an amenable number.

111977659228 is a deficient number, since it is larger than the sum of its proper divisors (94316107892).

111977659228 is a wasteful number, since it uses less digits than its factorization.

111977659228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136677 (or 136675 counting only the distinct ones).

The product of its digits is 3810240, while the sum is 58.

The spelling of 111977659228 in words is "one hundred eleven billion, nine hundred seventy-seven million, six hundred fifty-nine thousand, two hundred twenty-eight".