16608687872 has 144 divisors (see below), whose sum is σ = 40608164352. Its totient is φ = 6623907840.

The previous prime is 16608687853. The next prime is 16608687917. The reversal of 16608687872 is 27878680661.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1519547 + ... + 1530437.

Almost surely, 2^16608687872 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 16608687872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20304082176).

16608687872 is an abundant number, since it is smaller than the sum of its proper divisors (23999476480).

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

16608687872 is a wasteful number, since it uses less digits than its factorization.

16608687872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10974 (or 10960 counting only the distinct ones).

The product of its (nonzero) digits is 10838016, while the sum is 59.

The spelling of 16608687872 in words is "sixteen billion, six hundred eight million, six hundred eighty-seven thousand, eight hundred seventy-two".