66033346 has 4 divisors (see below), whose sum is σ = 99050022. Its totient is φ = 33016672.

The previous prime is 66033343. The next prime is 66033353. The reversal of 66033346 is 64333066.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 65788321 + 245025 = 8111^2 + 495^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (66033343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16508335 + ... + 16508338.

Almost surely, 2^66033346 is an apocalyptic number.

66033346 is a deficient number, since it is larger than the sum of its proper divisors (33016676).

66033346 is a wasteful number, since it uses less digits than its factorization.

66033346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33016675.

The product of its (nonzero) digits is 23328, while the sum is 31.

The square root of 66033346 is about 8126.0904499027. The cubic root of 66033346 is about 404.1920508000.

The spelling of 66033346 in words is "sixty-six million, thirty-three thousand, three hundred forty-six".