22078816256 has 108 divisors (see below), whose sum is σ = 51539607168. Its totient is φ = 9261023232.

The previous prime is 22078816211. The next prime is 22078816261. The reversal of 22078816256 is 65261887022.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a self number, because there is not a number n which added to its sum of digits gives 22078816256.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 469762025 + ... + 469762071.

Almost surely, 2^22078816256 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 22078816256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25769803584).

22078816256 is an abundant number, since it is smaller than the sum of its proper divisors (29460790912).

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

22078816256 is an frugal number, since it uses more digits than its factorization.

22078816256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106 (or 56 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 47.

The spelling of 22078816256 in words is "twenty-two billion, seventy-eight million, eight hundred sixteen thousand, two hundred fifty-six".