266323137841 has 2 divisors, whose sum is σ = 266323137842. Its totient is φ = 266323137840.

The previous prime is 266323137799. The next prime is 266323137859. The reversal of 266323137841 is 148731323662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 265451648400 + 871489441 = 515220^2 + 29521^2 .

It is a cyclic number.

It is not a de Polignac number, because 266323137841 - 2⁷ = 266323137713 is a prime.

It is a super-2 number, since 2×266323137841² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 266323137791 and 266323137800.

It is not a weakly prime, because it can be changed into another prime (266323137341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133161568920 + 133161568921.

It is an arithmetic number, because the mean of its divisors is an integer number (133161568921).

Almost surely, 2^266323137841 is an apocalyptic number.

It is an amenable number.

266323137841 is a deficient number, since it is larger than the sum of its proper divisors (1).

266323137841 is an equidigital number, since it uses as much as digits as its factorization.

266323137841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 870912, while the sum is 46.

It can be divided in two parts, 2663231 and 37841, that added together give a palindrome (2701072).

The spelling of 266323137841 in words is "two hundred sixty-six billion, three hundred twenty-three million, one hundred thirty-seven thousand, eight hundred forty-one".