126555346642271 has 2 divisors, whose sum is σ = 126555346642272. Its totient is φ = 126555346642270.

The previous prime is 126555346642177. The next prime is 126555346642289. The reversal of 126555346642271 is 172246643555621.

It is a strong prime.

It is an emirp because it is prime and its reverse (172246643555621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 126555346642271 - 2²² = 126555342447967 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 126555346642271.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126555346642771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63277673321135 + 63277673321136.

It is an arithmetic number, because the mean of its divisors is an integer number (63277673321136).

Almost surely, 2^{126555346642271} is an apocalyptic number.

126555346642271 is a deficient number, since it is larger than the sum of its proper divisors (1).

126555346642271 is an equidigital number, since it uses as much as digits as its factorization.

126555346642271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576000, while the sum is 59.

The spelling of 126555346642271 in words is "one hundred twenty-six trillion, five hundred fifty-five billion, three hundred forty-six million, six hundred forty-two thousand, two hundred seventy-one".