126606298691 has 2 divisors, whose sum is σ = 126606298692. Its totient is φ = 126606298690.

The previous prime is 126606298639. The next prime is 126606298769. The reversal of 126606298691 is 196892606621.

It is a weak prime.

It is an emirp because it is prime and its reverse (196892606621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 126606298691 - 2²⁶ = 126539189827 is a prime.

It is not a weakly prime, because it can be changed into another prime (126606298591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63303149345 + 63303149346.

It is an arithmetic number, because the mean of its divisors is an integer number (63303149346).

Almost surely, 2^126606298691 is an apocalyptic number.

126606298691 is a deficient number, since it is larger than the sum of its proper divisors (1).

126606298691 is an equidigital number, since it uses as much as digits as its factorization.

126606298691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3359232, while the sum is 56.

The spelling of 126606298691 in words is "one hundred twenty-six billion, six hundred six million, two hundred ninety-eight thousand, six hundred ninety-one".