12660120 has 192 divisors, whose sum is σ = 47174400. Its totient is φ = 2914560.

The previous prime is 12660113. The next prime is 12660139. The reversal of 12660120 is 2106621.

It is a happy number.

12660120 is a `hidden beast` number, since 1 + 2 + 660 + 1 + 2 + 0 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 12660093 and 12660102.

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, 91011 + ... + 91149.

It is an arithmetic number, because the mean of its divisors is an integer number (245700).

Almost surely, 2^12660120 is an apocalyptic number.

12660120 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 12660120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23587200).

12660120 is an abundant number, since it is smaller than the sum of its proper divisors (34514280).

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

12660120 is a wasteful number, since it uses less digits than its factorization.

12660120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190 (or 183 counting only the distinct ones).

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

The square root of 12660120 is about 3558.1062378743. The cubic root of 12660120 is about 233.0661885922.

Adding to 12660120 its reverse (2106621), we get a palindrome (14766741).

It can be divided in two parts, 126601 and 20, that added together give a palindrome (126621).

The spelling of 12660120 in words is "twelve million, six hundred sixty thousand, one hundred twenty".