33661016 has 8 divisors (see below), whose sum is σ = 63114420. Its totient is φ = 16830504.

The previous prime is 33660997. The next prime is 33661051. The reversal of 33661016 is 61016633.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×33661016² = 2266127996304512, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2103806 + ... + 2103821.

Almost surely, 2^33661016 is an apocalyptic number.

It is an amenable number.

33661016 is a deficient number, since it is larger than the sum of its proper divisors (29453404).

33661016 is a wasteful number, since it uses less digits than its factorization.

33661016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4207633 (or 4207629 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 33661016 is about 5801.8114412656. The cubic root of 33661016 is about 322.8809383951.

Adding to 33661016 its reverse (61016633), we get a palindrome (94677649).

The spelling of 33661016 in words is "thirty-three million, six hundred sixty-one thousand, sixteen".