1266771683159 has 2 divisors, whose sum is σ = 1266771683160. Its totient is φ = 1266771683158.

The previous prime is 1266771683153. The next prime is 1266771683167. The reversal of 1266771683159 is 9513861776621.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1266771683159 - 2⁴ = 1266771683143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1266771683153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 633385841579 + 633385841580.

It is an arithmetic number, because the mean of its divisors is an integer number (633385841580).

Almost surely, 2^{1266771683159} is an apocalyptic number.

1266771683159 is a deficient number, since it is larger than the sum of its proper divisors (1).

1266771683159 is an equidigital number, since it uses as much as digits as its factorization.

1266771683159 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22861440, while the sum is 62.

The spelling of 1266771683159 in words is "one trillion, two hundred sixty-six billion, seven hundred seventy-one million, six hundred eighty-three thousand, one hundred fifty-nine".