16800678688768 has 144 divisors (see below), whose sum is σ = 37818585965160. Its totient is φ = 7417015812096.

The previous prime is 16800678688697. The next prime is 16800678688789. The reversal of 16800678688768 is 86788687600861.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13487655 + ... + 14680537.

Almost surely, 2^{16800678688768} 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 16800678688768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18909292982580).

16800678688768 is an abundant number, since it is smaller than the sum of its proper divisors (21017907276392).

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

16800678688768 is a wasteful number, since it uses less digits than its factorization.

16800678688768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1192964 (or 1192921 counting only the distinct ones).

The product of its (nonzero) digits is 2080899072, while the sum is 79.

The spelling of 16800678688768 in words is "sixteen trillion, eight hundred billion, six hundred seventy-eight million, six hundred eighty-eight thousand, seven hundred sixty-eight".