660112200 has 192 divisors, whose sum is σ = 2480644800. Its totient is φ = 160012800.

The previous prime is 660112183. The next prime is 660112217. The reversal of 660112200 is 2211066.

It is a happy number.

660112200 is a `hidden beast` number, since 660 + 1 + 1 + 2 + 2 + 0 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (660112183) and next prime (660112217).

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 53844 + ... + 64956.

It is an arithmetic number, because the mean of its divisors is an integer number (12920025).

Almost surely, 2^660112200 is an apocalyptic number.

660112200 is a gapful number since it is divisible by the number (60) 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 660112200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1240322400).

660112200 is an abundant number, since it is smaller than the sum of its proper divisors (1820532600).

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

660112200 is a wasteful number, since it uses less digits than its factorization.

660112200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11149 (or 11134 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 660112200 is about 25692.6487540697. The cubic root of 660112200 is about 870.7081036521.

Adding to 660112200 its reverse (2211066), we get a palindrome (662323266).

The spelling of 660112200 in words is "six hundred sixty million, one hundred twelve thousand, two hundred".