33660066 has 32 divisors (see below), whose sum is σ = 73801728. Its totient is φ = 10149840.

The previous prime is 33659999. The next prime is 33660071. The reversal of 33660066 is 66006633.

It is a super-2 number, since 2×33660066² = 2266000086248712, which contains 22 as substring.

It is a Curzon number.

It is a zygodrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13575 + ... + 15861.

It is an arithmetic number, because the mean of its divisors is an integer number (2306304).

Almost surely, 2^33660066 is an apocalyptic number.

33660066 is an abundant number, since it is smaller than the sum of its proper divisors (40141662).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33660066 is a wasteful number, since it uses less digits than its factorization.

33660066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2526.

The product of its (nonzero) digits is 11664, while the sum is 30.

The square root of 33660066 is about 5801.7295697059. The cubic root of 33660066 is about 322.8779008578.

Adding to 33660066 its reverse (66006633), we get a palindrome (99666699).

It can be divided in two parts, 3366006 and 6, that multiplied together give a square (20196036 = 4494²).

The spelling of 33660066 in words is "thirty-three million, six hundred sixty thousand, sixty-six".