111344666500 has 48 divisors (see below), whose sum is σ = 243451877760. Its totient is φ = 44487477600.

The previous prime is 111344666467. The next prime is 111344666501. The reversal of 111344666500 is 5666443111.

It is a self number, because there is not a number n which added to its sum of digits gives 111344666500.

It is not an unprimeable number, because it can be changed into a prime (111344666501) 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, 317971 + ... + 569029.

It is an arithmetic number, because the mean of its divisors is an integer number (5071914120).

Almost surely, 2^111344666500 is an apocalyptic number.

111344666500 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 111344666500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121725938880).

111344666500 is an abundant number, since it is smaller than the sum of its proper divisors (132107211260).

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

111344666500 is a wasteful number, since it uses less digits than its factorization.

111344666500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251965 (or 251953 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The spelling of 111344666500 in words is "one hundred eleven billion, three hundred forty-four million, six hundred sixty-six thousand, five hundred".