12660277506049 has 2 divisors, whose sum is σ = 12660277506050. Its totient is φ = 12660277506048.

The previous prime is 12660277506031. The next prime is 12660277506113. The reversal of 12660277506049 is 94060577206621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7946580585024 + 4713696921025 = 2818968^2 + 2171105^2 .

It is a cyclic number.

It is not a de Polignac number, because 12660277506049 - 2⁷ = 12660277505921 is a prime.

It is not a weakly prime, because it can be changed into another prime (12660277506749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6330138753024 + 6330138753025.

It is an arithmetic number, because the mean of its divisors is an integer number (6330138753025).

Almost surely, 2^{12660277506049} is an apocalyptic number.

It is an amenable number.

12660277506049 is a deficient number, since it is larger than the sum of its proper divisors (1).

12660277506049 is an equidigital number, since it uses as much as digits as its factorization.

12660277506049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7620480, while the sum is 55.

The spelling of 12660277506049 in words is "twelve trillion, six hundred sixty billion, two hundred seventy-seven million, five hundred six thousand, forty-nine".