266402684741 has 2 divisors, whose sum is σ = 266402684742. Its totient is φ = 266402684740.

The previous prime is 266402684711. The next prime is 266402684753. The reversal of 266402684741 is 147486204662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 258619034116 + 7783650625 = 508546^2 + 88225^2 .

It is a cyclic number.

It is not a de Polignac number, because 266402684741 - 2⁶ = 266402684677 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 266402684741.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (266402684711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133201342370 + 133201342371.

It is an arithmetic number, because the mean of its divisors is an integer number (133201342371).

Almost surely, 2^266402684741 is an apocalyptic number.

It is an amenable number.

266402684741 is a deficient number, since it is larger than the sum of its proper divisors (1).

266402684741 is an equidigital number, since it uses as much as digits as its factorization.

266402684741 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3096576, while the sum is 50.

The spelling of 266402684741 in words is "two hundred sixty-six billion, four hundred two million, six hundred eighty-four thousand, seven hundred forty-one".