33664066 has 4 divisors (see below), whose sum is σ = 50496102. Its totient is φ = 16832032.

The previous prime is 33664061. The next prime is 33664093. The reversal of 33664066 is 66046633.

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., 27783441 + 5880625 = 5271^2 + 2425^2 .

It is a super-2 number, since 2×33664066² = 2266538679304712, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33664061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8416015 + ... + 8416018.

Almost surely, 2^33664066 is an apocalyptic number.

33664066 is a deficient number, since it is larger than the sum of its proper divisors (16832036).

33664066 is a wasteful number, since it uses less digits than its factorization.

33664066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16832035.

The product of its (nonzero) digits is 46656, while the sum is 34.

The square root of 33664066 is about 5802.0742842539. The cubic root of 33664066 is about 322.8906901023.

The spelling of 33664066 in words is "thirty-three million, six hundred sixty-four thousand, sixty-six".