111006105660 has 144 divisors (see below), whose sum is σ = 352198566720. Its totient is φ = 28246901760.

The previous prime is 111006105611. The next prime is 111006105673. The reversal of 111006105660 is 66501600111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1711096 + ... + 1774784.

It is an arithmetic number, because the mean of its divisors is an integer number (2445823380).

Almost surely, 2^111006105660 is an apocalyptic number.

111006105660 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 111006105660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176099283360).

111006105660 is an abundant number, since it is smaller than the sum of its proper divisors (241192461060).

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

111006105660 is a wasteful number, since it uses less digits than its factorization.

111006105660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64148 (or 64143 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

Adding to 111006105660 its reverse (66501600111), we get a palindrome (177507705771).

The spelling of 111006105660 in words is "one hundred eleven billion, six million, one hundred five thousand, six hundred sixty".