133565410505441 has 2 divisors, whose sum is σ = 133565410505442. Its totient is φ = 133565410505440.

The previous prime is 133565410505389. The next prime is 133565410505467. The reversal of 133565410505441 is 144505014565331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 129127314096400 + 4438096409041 = 11363420^2 + 2106679^2 .

It is a cyclic number.

It is not a de Polignac number, because 133565410505441 - 2³⁸ = 133290532598497 is a prime.

It is not a weakly prime, because it can be changed into another prime (133565410525441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66782705252720 + 66782705252721.

It is an arithmetic number, because the mean of its divisors is an integer number (66782705252721).

Almost surely, 2^{133565410505441} is an apocalyptic number.

It is an amenable number.

133565410505441 is a deficient number, since it is larger than the sum of its proper divisors (1).

133565410505441 is an equidigital number, since it uses as much as digits as its factorization.

133565410505441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160000, while the sum is 47.

The spelling of 133565410505441 in words is "one hundred thirty-three trillion, five hundred sixty-five billion, four hundred ten million, five hundred five thousand, four hundred forty-one".