111550044500 has 48 divisors (see below), whose sum is σ = 244122016320. Its totient is φ = 44529044000.

The previous prime is 111550044499. The next prime is 111550044503. The reversal of 111550044500 is 5440055111.

111550044500 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 111550044500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111550044503) 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, 18311 + ... + 472689.

It is an arithmetic number, because the mean of its divisors is an integer number (5085875340).

Almost surely, 2^111550044500 is an apocalyptic number.

111550044500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111550044500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122061008160).

111550044500 is an abundant number, since it is smaller than the sum of its proper divisors (132571971820).

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

111550044500 is a wasteful number, since it uses less digits than its factorization.

111550044500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454889 (or 454877 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 26.

Adding to 111550044500 its reverse (5440055111), we get a palindrome (116990099611).

The spelling of 111550044500 in words is "one hundred eleven billion, five hundred fifty million, forty-four thousand, five hundred".