16816910256 has 320 divisors, whose sum is σ = 51930009600. Its totient is φ = 5265596160.

The previous prime is 16816910251. The next prime is 16816910281. The reversal of 16816910256 is 65201961861.

It is not an unprimeable number, because it can be changed into a prime (16816910251) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 40135615 + ... + 40136033.

It is an arithmetic number, because the mean of its divisors is an integer number (162281280).

Almost surely, 2^16816910256 is an apocalyptic number.

16816910256 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 16816910256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25965004800).

16816910256 is an abundant number, since it is smaller than the sum of its proper divisors (35113099344).

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

16816910256 is an equidigital number, since it uses as much as digits as its factorization.

16816910256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516 (or 492 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 45.

The spelling of 16816910256 in words is "sixteen billion, eight hundred sixteen million, nine hundred ten thousand, two hundred fifty-six".