12716061781361 has 8 divisors (see below), whose sum is σ = 12877737592320. Its totient is φ = 12554403795648.

The previous prime is 12716061781321. The next prime is 12716061781411. The reversal of 12716061781361 is 16318716061721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12716061781361 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12716061781321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3017561 + ... + 5876886.

It is an arithmetic number, because the mean of its divisors is an integer number (1609717199040).

Almost surely, 2^{12716061781361} is an apocalyptic number.

It is an amenable number.

12716061781361 is a deficient number, since it is larger than the sum of its proper divisors (161675810959).

12716061781361 is an equidigital number, since it uses as much as digits as its factorization.

12716061781361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8912623.

The product of its (nonzero) digits is 508032, while the sum is 50.

The spelling of 12716061781361 in words is "twelve trillion, seven hundred sixteen billion, sixty-one million, seven hundred eighty-one thousand, three hundred sixty-one".