126165901212697 has 2 divisors, whose sum is σ = 126165901212698. Its totient is φ = 126165901212696.

The previous prime is 126165901212623. The next prime is 126165901212707. The reversal of 126165901212697 is 796212109561621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117944400168841 + 8221501043856 = 10860221^2 + 2867316^2 .

It is a cyclic number.

It is not a de Polignac number, because 126165901212697 - 2¹⁹ = 126165900688409 is a prime.

It is not a weakly prime, because it can be changed into another prime (126165901212997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63082950606348 + 63082950606349.

It is an arithmetic number, because the mean of its divisors is an integer number (63082950606349).

Almost surely, 2^{126165901212697} is an apocalyptic number.

It is an amenable number.

126165901212697 is a deficient number, since it is larger than the sum of its proper divisors (1).

126165901212697 is an equidigital number, since it uses as much as digits as its factorization.

126165901212697 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4898880, while the sum is 58.

The spelling of 126165901212697 in words is "one hundred twenty-six trillion, one hundred sixty-five billion, nine hundred one million, two hundred twelve thousand, six hundred ninety-seven".