16278569216 has 144 divisors (see below), whose sum is σ = 41283959808. Its totient is φ = 6231859200.

The previous prime is 16278569213. The next prime is 16278569261. The reversal of 16278569216 is 61296587261.

It is not an unprimeable number, because it can be changed into a prime (16278569213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 710906 + ... + 733446.

Almost surely, 2^16278569216 is an apocalyptic number.

16278569216 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 16278569216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20641979904).

16278569216 is an abundant number, since it is smaller than the sum of its proper divisors (25005390592).

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

16278569216 is a wasteful number, since it uses less digits than its factorization.

16278569216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22608 (or 22594 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 53.

The spelling of 16278569216 in words is "sixteen billion, two hundred seventy-eight million, five hundred sixty-nine thousand, two hundred sixteen".