133566740201 has 2 divisors, whose sum is σ = 133566740202. Its totient is φ = 133566740200.

The previous prime is 133566740161. The next prime is 133566740221. The reversal of 133566740201 is 102047665331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109379025625 + 24187714576 = 330725^2 + 155524^2 .

It is a cyclic number.

It is not a de Polignac number, because 133566740201 - 2³⁰ = 132492998377 is a prime.

It is not a weakly prime, because it can be changed into another prime (133566740221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66783370100 + 66783370101.

It is an arithmetic number, because the mean of its divisors is an integer number (66783370101).

Almost surely, 2^133566740201 is an apocalyptic number.

It is an amenable number.

133566740201 is a deficient number, since it is larger than the sum of its proper divisors (1).

133566740201 is an equidigital number, since it uses as much as digits as its factorization.

133566740201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 38.

The spelling of 133566740201 in words is "one hundred thirty-three billion, five hundred sixty-six million, seven hundred forty thousand, two hundred one".