12720266707968 has 1056 divisors, whose sum is σ = 41678361088000. Its totient is φ = 3860160675840.

The previous prime is 12720266707963. The next prime is 12720266707979. The reversal of 12720266707968 is 86970766202721.

It is not an unprimeable number, because it can be changed into a prime (12720266707963) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 33562708803 + ... + 33562709181.

Almost surely, 2^{12720266707968} is an apocalyptic number.

12720266707968 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 12720266707968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20839180544000).

12720266707968 is an abundant number, since it is smaller than the sum of its proper divisors (28958094380032).

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

12720266707968 is a wasteful number, since it uses less digits than its factorization.

12720266707968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693 (or 663 counting only the distinct ones).

The product of its (nonzero) digits is 42674688, while the sum is 63.

The spelling of 12720266707968 in words is "twelve trillion, seven hundred twenty billion, two hundred sixty-six million, seven hundred seven thousand, nine hundred sixty-eight".