16268889448 has 96 divisors (see below), whose sum is σ = 36752797440. Its totient is φ = 6727378560.

The previous prime is 16268889389. The next prime is 16268889457. The reversal of 16268889448 is 84498886261.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 16268889448.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1301886 + ... + 1314322.

It is an arithmetic number, because the mean of its divisors is an integer number (382841640).

Almost surely, 2^16268889448 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 16268889448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18376398720).

16268889448 is an abundant number, since it is smaller than the sum of its proper divisors (20483907992).

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

16268889448 is a wasteful number, since it uses less digits than its factorization.

16268889448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12575 (or 12564 counting only the distinct ones).

The product of its digits is 42467328, while the sum is 64.

The spelling of 16268889448 in words is "sixteen billion, two hundred sixty-eight million, eight hundred eighty-nine thousand, four hundred forty-eight".