16304433648 has 20 divisors (see below), whose sum is σ = 42119787048. Its totient is φ = 5434811200.

The previous prime is 16304433641. The next prime is 16304433659. The reversal of 16304433648 is 84633440361.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16304433641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169837803 + ... + 169837898.

Almost surely, 2^16304433648 is an apocalyptic number.

It is an amenable number.

16304433648 is an abundant number, since it is smaller than the sum of its proper divisors (25815353400).

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

16304433648 is a wasteful number, since it uses less digits than its factorization.

16304433648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339675712 (or 339675706 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 42.

The spelling of 16304433648 in words is "sixteen billion, three hundred four million, four hundred thirty-three thousand, six hundred forty-eight".