133066966 has 4 divisors (see below), whose sum is σ = 199600452. Its totient is φ = 66533482.

The previous prime is 133066963. The next prime is 133066979. The reversal of 133066966 is 669660331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 669660331 = 263 ⋅2546237.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133066963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33266740 + ... + 33266743.

It is an arithmetic number, because the mean of its divisors is an integer number (49900113).

Almost surely, 2^133066966 is an apocalyptic number.

133066966 is a deficient number, since it is larger than the sum of its proper divisors (66533486).

133066966 is an equidigital number, since it uses as much as digits as its factorization.

133066966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66533485.

The product of its (nonzero) digits is 104976, while the sum is 40.

The square root of 133066966 is about 11535.4655736125. The cubic root of 133066966 is about 510.5325284654.

The spelling of 133066966 in words is "one hundred thirty-three million, sixty-six thousand, nine hundred sixty-six".