266046356260429 has 2 divisors, whose sum is σ = 266046356260430. Its totient is φ = 266046356260428.

The previous prime is 266046356260343. The next prime is 266046356260457. The reversal of 266046356260429 is 924062653640662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 180225308739204 + 85821047521225 = 13424802^2 + 9263965^2 .

It is a cyclic number.

It is not a de Polignac number, because 266046356260429 - 2¹⁹ = 266046355736141 is a prime.

It is a super-2 number, since 2×266046356260429² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (266046356266429) 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, 133023178130214 + 133023178130215.

It is an arithmetic number, because the mean of its divisors is an integer number (133023178130215).

Almost surely, 2^{266046356260429} is an apocalyptic number.

It is an amenable number.

266046356260429 is a deficient number, since it is larger than the sum of its proper divisors (1).

266046356260429 is an equidigital number, since it uses as much as digits as its factorization.

266046356260429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 134369280, while the sum is 61.

The spelling of 266046356260429 in words is "two hundred sixty-six trillion, forty-six billion, three hundred fifty-six million, two hundred sixty thousand, four hundred twenty-nine".