660112112 has 80 divisors (see below), whose sum is σ = 1423242240. Its totient is φ = 296556480.

The previous prime is 660112111. The next prime is 660112127. The reversal of 660112112 is 211211066.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660112111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2960033 + ... + 2960255.

It is an arithmetic number, because the mean of its divisors is an integer number (17790528).

Almost surely, 2^660112112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 660112112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (711621120).

660112112 is an abundant number, since it is smaller than the sum of its proper divisors (763130128).

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

660112112 is a wasteful number, since it uses less digits than its factorization.

660112112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403 (or 375 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 660112112 is about 25692.6470415175. The cubic root of 660112112 is about 870.7080649605.

Adding to 660112112 its reverse (211211066), we get a palindrome (871323178).

The spelling of 660112112 in words is "six hundred sixty million, one hundred twelve thousand, one hundred twelve".