16816385992 has 128 divisors (see below), whose sum is σ = 39165603840. Its totient is φ = 6604416000.

The previous prime is 16816385987. The next prime is 16816386007. The reversal of 16816385992 is 29958361861.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22391617 + ... + 22392367.

It is an arithmetic number, because the mean of its divisors is an integer number (305981280).

Almost surely, 2^16816385992 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 16816385992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19582801920).

16816385992 is an abundant number, since it is smaller than the sum of its proper divisors (22349217848).

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

16816385992 is a wasteful number, since it uses less digits than its factorization.

16816385992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1371 (or 1367 counting only the distinct ones).

The product of its digits is 5598720, while the sum is 58.

The spelling of 16816385992 in words is "sixteen billion, eight hundred sixteen million, three hundred eighty-five thousand, nine hundred ninety-two".