111342660 has 192 divisors, whose sum is σ = 386104320. Its totient is φ = 23569920.

The previous prime is 111342659. The next prime is 111342661. The reversal of 111342660 is 66243111.

It is an interprime number because it is at equal distance from previous prime (111342659) and next prime (111342661).

It is a self number, because there is not a number n which added to its sum of digits gives 111342660.

It is not an unprimeable number, because it can be changed into a prime (111342661) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 162679 + ... + 163361.

It is an arithmetic number, because the mean of its divisors is an integer number (2010960).

Almost surely, 2^111342660 is an apocalyptic number.

111342660 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 111342660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193052160).

111342660 is an abundant number, since it is smaller than the sum of its proper divisors (274761660).

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

111342660 is a wasteful number, since it uses less digits than its factorization.

111342660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738 (or 736 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 111342660 is about 10551.9031458785. The cubic root of 111342660 is about 481.0835763447.

Adding to 111342660 its reverse (66243111), we get a palindrome (177585771).

The spelling of 111342660 in words is "one hundred eleven million, three hundred forty-two thousand, six hundred sixty".