33366661 has 8 divisors (see below), whose sum is σ = 34272000. Its totient is φ = 32465760.

The previous prime is 33366653. The next prime is 33366689. The reversal of 33366661 is 16666333.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 33366661 - 2³ = 33366653 is a prime.

It is a super-2 number, since 2×33366661² = 2226668132577842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33366601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18790 + ... + 20488.

It is an arithmetic number, because the mean of its divisors is an integer number (4284000).

Almost surely, 2^33366661 is an apocalyptic number.

It is an amenable number.

33366661 is a deficient number, since it is larger than the sum of its proper divisors (905339).

33366661 is a wasteful number, since it uses less digits than its factorization.

33366661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2219.

The product of its digits is 34992, while the sum is 34.

The square root of 33366661 is about 5776.3882314124. The cubic root of 33366661 is about 321.9370175029.

The spelling of 33366661 in words is "thirty-three million, three hundred sixty-six thousand, six hundred sixty-one".