133566213666304 has 20 divisors (see below), whose sum is σ = 266871555822564. Its totient is φ = 66783106832896.

The previous prime is 133566213666299. The next prime is 133566213666317. The reversal of 133566213666304 is 403666312665331.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130435755022 + ... + 130435756045.

Almost surely, 2^{133566213666304} is an apocalyptic number.

It is an amenable number.

133566213666304 is a deficient number, since it is larger than the sum of its proper divisors (133305342156260).

133566213666304 is an frugal number, since it uses more digits than its factorization.

133566213666304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260871511085 (or 260871511069 counting only the distinct ones).

The product of its (nonzero) digits is 25194240, while the sum is 55.

The spelling of 133566213666304 in words is "one hundred thirty-three trillion, five hundred sixty-six billion, two hundred thirteen million, six hundred sixty-six thousand, three hundred four".