26641664130149 has 2 divisors, whose sum is σ = 26641664130150. Its totient is φ = 26641664130148.

The previous prime is 26641664130089. The next prime is 26641664130271. The reversal of 26641664130149 is 94103146614662.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20638331101249 + 6003333028900 = 4542943^2 + 2450170^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26641664130149 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26641664130149.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26641664130049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13320832065074 + 13320832065075.

It is an arithmetic number, because the mean of its divisors is an integer number (13320832065075).

Almost surely, 2^{26641664130149} is an apocalyptic number.

It is an amenable number.

26641664130149 is a deficient number, since it is larger than the sum of its proper divisors (1).

26641664130149 is an equidigital number, since it uses as much as digits as its factorization.

26641664130149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4478976, while the sum is 53.

The spelling of 26641664130149 in words is "twenty-six trillion, six hundred forty-one billion, six hundred sixty-four million, one hundred thirty thousand, one hundred forty-nine".