16863858336 has 288 divisors, whose sum is σ = 51230817792. Its totient is φ = 4843238400.

The previous prime is 16863858311. The next prime is 16863858337. The reversal of 16863858336 is 63385836861.

It is not an unprimeable number, because it can be changed into a prime (16863858337) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16045011 + ... + 16046061.

It is an arithmetic number, because the mean of its divisors is an integer number (177884784).

Almost surely, 2^16863858336 is an apocalyptic number.

16863858336 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 16863858336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25615408896).

16863858336 is an abundant number, since it is smaller than the sum of its proper divisors (34366959456).

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

16863858336 is a wasteful number, since it uses less digits than its factorization.

16863858336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1156 (or 1135 counting only the distinct ones).

The product of its digits is 14929920, while the sum is 57.

The spelling of 16863858336 in words is "sixteen billion, eight hundred sixty-three million, eight hundred fifty-eight thousand, three hundred thirty-six".