16687824896 has 38 divisors (see below), whose sum is σ = 33376110420. Its totient is φ = 8343781376.

The previous prime is 16687824863. The next prime is 16687824941. The reversal of 16687824896 is 69842878661.

It is a Smith number, since the sum of its digits (65) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230315 + ... + 293973.

Almost surely, 2^16687824896 is an apocalyptic number.

16687824896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16687824896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16688055210).

16687824896 is an abundant number, since it is smaller than the sum of its proper divisors (16688285524).

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

16687824896 is an frugal number, since it uses more digits than its factorization.

16687824896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63695 (or 63661 counting only the distinct ones).

The product of its digits is 55738368, while the sum is 65.

The spelling of 16687824896 in words is "sixteen billion, six hundred eighty-seven million, eight hundred twenty-four thousand, eight hundred ninety-six".