12661047334411 has 8 divisors (see below), whose sum is σ = 14469828553184. Its totient is φ = 10852281158400.

The previous prime is 12661047334387. The next prime is 12661047334459. The reversal of 12661047334411 is 11443374016621.

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

It is a cyclic number.

It is not a de Polignac number, because 12661047334411 - 2³⁷ = 12523608380939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12661047334511) 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, 1895430 + ... + 5377243.

It is an arithmetic number, because the mean of its divisors is an integer number (1808728569148).

Almost surely, 2^{12661047334411} is an apocalyptic number.

12661047334411 is a deficient number, since it is larger than the sum of its proper divisors (1808781218773).

12661047334411 is an equidigital number, since it uses as much as digits as its factorization.

12661047334411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7521381.

The product of its (nonzero) digits is 290304, while the sum is 43.

The spelling of 12661047334411 in words is "twelve trillion, six hundred sixty-one billion, forty-seven million, three hundred thirty-four thousand, four hundred eleven".