16803081216 has 132 divisors (see below), whose sum is σ = 48754119544. Its totient is φ = 5573836800.

The previous prime is 16803081179. The next prime is 16803081263. The reversal of 16803081216 is 61218030861.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 1940256 + ... + 1948896.

Almost surely, 2^16803081216 is an apocalyptic number.

16803081216 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 16803081216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24377059772).

16803081216 is an abundant number, since it is smaller than the sum of its proper divisors (31951038328).

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

16803081216 is a wasteful number, since it uses less digits than its factorization.

16803081216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8878 (or 8857 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The spelling of 16803081216 in words is "sixteen billion, eight hundred three million, eighty-one thousand, two hundred sixteen".