33204431616 has 144 divisors (see below), whose sum is σ = 93986390400. Its totient is φ = 10377068544.

The previous prime is 33204431599. The next prime is 33204431639. The reversal of 33204431616 is 61613440233.

It is a super-2 number, since 2×33204431616² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1403695 + ... + 1427153.

Almost surely, 2^33204431616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33204431616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46993195200).

33204431616 is an abundant number, since it is smaller than the sum of its proper divisors (60781958784).

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

33204431616 is a wasteful number, since it uses less digits than its factorization.

33204431616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23594 (or 23580 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 33.

Adding to 33204431616 its reverse (61613440233), we get a palindrome (94817871849).

The spelling of 33204431616 in words is "thirty-three billion, two hundred four million, four hundred thirty-one thousand, six hundred sixteen".