12666730348801 has 2 divisors, whose sum is σ = 12666730348802. Its totient is φ = 12666730348800.

The previous prime is 12666730348781. The next prime is 12666730348837. The reversal of 12666730348801 is 10884303766621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10539729785025 + 2127000563776 = 3246495^2 + 1458424^2 .

It is a cyclic number.

It is not a de Polignac number, because 12666730348801 - 2³⁷ = 12529291395329 is a prime.

It is not a weakly prime, because it can be changed into another prime (12666730348301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6333365174400 + 6333365174401.

It is an arithmetic number, because the mean of its divisors is an integer number (6333365174401).

Almost surely, 2^{12666730348801} is an apocalyptic number.

It is an amenable number.

12666730348801 is a deficient number, since it is larger than the sum of its proper divisors (1).

12666730348801 is an equidigital number, since it uses as much as digits as its factorization.

12666730348801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6967296, while the sum is 55.

The spelling of 12666730348801 in words is "twelve trillion, six hundred sixty-six billion, seven hundred thirty million, three hundred forty-eight thousand, eight hundred one".