16684216264 has 16 divisors (see below), whose sum is σ = 32045903820. Its totient is φ = 8138641920.

The previous prime is 16684216259. The next prime is 16684216301. The reversal of 16684216264 is 46261248661.

It can be written as a sum of positive squares in 2 ways, for example, as 16497347364 + 186868900 = 128442^2 + 13670^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25432929 + ... + 25433584.

Almost surely, 2^16684216264 is an apocalyptic number.

It is an amenable number.

16684216264 is a deficient number, since it is larger than the sum of its proper divisors (15361687556).

16684216264 is a wasteful number, since it uses less digits than its factorization.

16684216264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50866560 (or 50866556 counting only the distinct ones).

The product of its digits is 663552, while the sum is 46.

The spelling of 16684216264 in words is "sixteen billion, six hundred eighty-four million, two hundred sixteen thousand, two hundred sixty-four".