111111547187368 has 128 divisors (see below), whose sum is σ = 260917813739520. Its totient is φ = 43187091045120.

The previous prime is 111111547187341. The next prime is 111111547187369. The reversal of 111111547187368 is 863781745111111.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (111111547187369) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15707323 + ... + 21655093.

It is an arithmetic number, because the mean of its divisors is an integer number (2038420419840).

Almost surely, 2^{111111547187368} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111111547187368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130458906869760).

111111547187368 is an abundant number, since it is smaller than the sum of its proper divisors (149806266552152).

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

111111547187368 is a wasteful number, since it uses less digits than its factorization.

111111547187368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5948247 (or 5948243 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 55.

The spelling of 111111547187368 in words is "one hundred eleven trillion, one hundred eleven billion, five hundred forty-seven million, one hundred eighty-seven thousand, three hundred sixty-eight".