266401324271 has 2 divisors, whose sum is σ = 266401324272. Its totient is φ = 266401324270.

The previous prime is 266401324249. The next prime is 266401324283. The reversal of 266401324271 is 172423104662.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 266401324271 - 2¹⁰ = 266401323247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (266401324471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133200662135 + 133200662136.

It is an arithmetic number, because the mean of its divisors is an integer number (133200662136).

Almost surely, 2^266401324271 is an apocalyptic number.

266401324271 is a deficient number, since it is larger than the sum of its proper divisors (1).

266401324271 is an equidigital number, since it uses as much as digits as its factorization.

266401324271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96768, while the sum is 38.

The spelling of 266401324271 in words is "two hundred sixty-six billion, four hundred one million, three hundred twenty-four thousand, two hundred seventy-one".