16889696009664 has 56 divisors (see below), whose sum is σ = 44688183042048. Its totient is φ = 5629790027520.

The previous prime is 16889696009639. The next prime is 16889696009729. The reversal of 16889696009664 is 46690069698861.

16889696009664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 16889696009664.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9451329 + ... + 11095359.

It is an arithmetic number, because the mean of its divisors is an integer number (798003268608).

Almost surely, 2^{16889696009664} is an apocalyptic number.

It is an amenable number.

16889696009664 is an abundant number, since it is smaller than the sum of its proper divisors (27798487032384).

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

16889696009664 is a wasteful number, since it uses less digits than its factorization.

16889696009664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1697553 (or 1697543 counting only the distinct ones).

The product of its (nonzero) digits is 1451188224, while the sum is 78.

The spelling of 16889696009664 in words is "sixteen trillion, eight hundred eighty-nine billion, six hundred ninety-six million, nine thousand, six hundred sixty-four".