133566211555013 has 2 divisors, whose sum is σ = 133566211555014. Its totient is φ = 133566211555012.

The previous prime is 133566211554989. The next prime is 133566211555039. The reversal of 133566211555013 is 310555112665331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118734300661729 + 14831910893284 = 10896527^2 + 3851222^2 .

It is a cyclic number.

It is not a de Polignac number, because 133566211555013 - 2⁸ = 133566211554757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133566211555913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66783105777506 + 66783105777507.

It is an arithmetic number, because the mean of its divisors is an integer number (66783105777507).

Almost surely, 2^{133566211555013} is an apocalyptic number.

It is an amenable number.

133566211555013 is a deficient number, since it is larger than the sum of its proper divisors (1).

133566211555013 is an equidigital number, since it uses as much as digits as its factorization.

133566211555013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1215000, while the sum is 47.

The spelling of 133566211555013 in words is "one hundred thirty-three trillion, five hundred sixty-six billion, two hundred eleven million, five hundred fifty-five thousand, thirteen".