111544063111540 has 48 divisors (see below), whose sum is σ = 240686413506000. Its totient is φ = 43391352195072.

The previous prime is 111544063111517. The next prime is 111544063111543. The reversal of 111544063111540 is 45111360445111.

It can be written as a sum of positive squares in 8 ways, for example, as 7079228705124 + 104464834406416 = 2660682^2 + 10220804^2 .

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a self number, because there is not a number n which added to its sum of digits gives 111544063111540.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111544063111543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33825015 + ... + 36975934.

It is an arithmetic number, because the mean of its divisors is an integer number (5014300281375).

Almost surely, 2^{111544063111540} is an apocalyptic number.

111544063111540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111544063111540 is an abundant number, since it is smaller than the sum of its proper divisors (129142350394460).

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

111544063111540 is a wasteful number, since it uses less digits than its factorization.

111544063111540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70803124 (or 70803122 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 37.

The spelling of 111544063111540 in words is "one hundred eleven trillion, five hundred forty-four billion, sixty-three million, one hundred eleven thousand, five hundred forty".