12646536771611 has 2 divisors, whose sum is σ = 12646536771612. Its totient is φ = 12646536771610.

The previous prime is 12646536771587. The next prime is 12646536771629. The reversal of 12646536771611 is 11617763564621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12646536771611 - 2¹⁴ = 12646536755227 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (12646536731611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6323268385805 + 6323268385806.

It is an arithmetic number, because the mean of its divisors is an integer number (6323268385806).

Almost surely, 2^{12646536771611} is an apocalyptic number.

12646536771611 is a deficient number, since it is larger than the sum of its proper divisors (1).

12646536771611 is an equidigital number, since it uses as much as digits as its factorization.

12646536771611 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7620480, while the sum is 56.

The spelling of 12646536771611 in words is "twelve trillion, six hundred forty-six billion, five hundred thirty-six million, seven hundred seventy-one thousand, six hundred eleven".