16293899256 has 64 divisors (see below), whose sum is σ = 41469062400. Its totient is φ = 5333587200.

The previous prime is 16293899239. The next prime is 16293899261. The reversal of 16293899256 is 65299839261.

It is a self number, because there is not a number n which added to its sum of digits gives 16293899256.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1454316 + ... + 1465476.

It is an arithmetic number, because the mean of its divisors is an integer number (647954100).

Almost surely, 2^16293899256 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 16293899256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20734531200).

16293899256 is an abundant number, since it is smaller than the sum of its proper divisors (25175163144).

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

16293899256 is a wasteful number, since it uses less digits than its factorization.

16293899256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12260 (or 12256 counting only the distinct ones).

The product of its digits is 12597120, while the sum is 60.

The spelling of 16293899256 in words is "sixteen billion, two hundred ninety-three million, eight hundred ninety-nine thousand, two hundred fifty-six".