12660072542208 has 936 divisors, whose sum is σ = 45952953319728. Its totient is φ = 3328645791744.

The previous prime is 12660072542179. The next prime is 12660072542281. The reversal of 12660072542208 is 80224527006621.

12660072542208 is a `hidden beast` number, since 1 + 26 + 60 + 0 + 7 + 2 + 542 + 20 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (936).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 10402688416 + ... + 10402689632.

It is an arithmetic number, because the mean of its divisors is an integer number (49095035598).

Almost surely, 2^{12660072542208} is an apocalyptic number.

12660072542208 is a gapful number since it is divisible by the number (18) 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 12660072542208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22976476659864).

12660072542208 is an abundant number, since it is smaller than the sum of its proper divisors (33292880777520).

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

12660072542208 is a wasteful number, since it uses less digits than its factorization.

12660072542208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1717 (or 1685 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

Adding to 12660072542208 its reverse (80224527006621), we get a palindrome (92884599548829).

The spelling of 12660072542208 in words is "twelve trillion, six hundred sixty billion, seventy-two million, five hundred forty-two thousand, two hundred eight".