126708266017 has 2 divisors, whose sum is σ = 126708266018. Its totient is φ = 126708266016.

The previous prime is 126708265969. The next prime is 126708266107. The reversal of 126708266017 is 710662807621.

It is a happy number.

Together with next prime (126708266107) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72962653456 + 53745612561 = 270116^2 + 231831^2 .

It is a cyclic number.

It is not a de Polignac number, because 126708266017 - 2¹⁹ = 126707741729 is a prime.

It is not a weakly prime, because it can be changed into another prime (126708266317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63354133008 + 63354133009.

It is an arithmetic number, because the mean of its divisors is an integer number (63354133009).

Almost surely, 2^126708266017 is an apocalyptic number.

It is an amenable number.

126708266017 is a deficient number, since it is larger than the sum of its proper divisors (1).

126708266017 is an equidigital number, since it uses as much as digits as its factorization.

126708266017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 338688, while the sum is 46.

The spelling of 126708266017 in words is "one hundred twenty-six billion, seven hundred eight million, two hundred sixty-six thousand, seventeen".