266765074141 has 2 divisors, whose sum is σ = 266765074142. Its totient is φ = 266765074140.

The previous prime is 266765074139. The next prime is 266765074241. The reversal of 266765074141 is 141470567662.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 264757586116 + 2007488025 = 514546^2 + 44805^2 .

It is a cyclic number.

It is not a de Polignac number, because 266765074141 - 2¹ = 266765074139 is a prime.

Together with 266765074139, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (266765074241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133382537070 + 133382537071.

It is an arithmetic number, because the mean of its divisors is an integer number (133382537071).

Almost surely, 2^266765074141 is an apocalyptic number.

It is an amenable number.

266765074141 is a deficient number, since it is larger than the sum of its proper divisors (1).

266765074141 is an equidigital number, since it uses as much as digits as its factorization.

266765074141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1693440, while the sum is 49.

The spelling of 266765074141 in words is "two hundred sixty-six billion, seven hundred sixty-five million, seventy-four thousand, one hundred forty-one".