33661064 has 8 divisors (see below), whose sum is σ = 63114510. Its totient is φ = 16830528.

The previous prime is 33661063. The next prime is 33661073. The reversal of 33661064 is 46016633.

It can be written as a sum of positive squares in only one way, i.e., 18992164 + 14668900 = 4358^2 + 3830^2 .

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

It is a super-2 number, since 2×33661064² = 2266134459224192, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33661063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2103809 + ... + 2103824.

Almost surely, 2^33661064 is an apocalyptic number.

It is an amenable number.

33661064 is a deficient number, since it is larger than the sum of its proper divisors (29453446).

33661064 is a wasteful number, since it uses less digits than its factorization.

33661064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4207639 (or 4207635 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 33661064 is about 5801.8155779032. The cubic root of 33661064 is about 322.8810918692.

Adding to 33661064 its reverse (46016633), we get a palindrome (79677697).

The spelling of 33661064 in words is "thirty-three million, six hundred sixty-one thousand, sixty-four".