255728444416 has 33 divisors (see below), whose sum is σ = 511239504811. Its totient is φ = 127856131072.

The previous prime is 255728444401. The next prime is 255728444431. The reversal of 255728444416 is 614444827552.

The square root of 255728444416 is 505696.

It is a perfect power (a square), and thus also a powerful number.

255728444416 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (255728444401) and next prime (255728444431).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 16174371 + ... + 16190173.

Almost surely, 2^255728444416 is an apocalyptic number.

255728444416 is the 505696-th square number.

It is an amenable number.

255728444416 is a deficient number, since it is larger than the sum of its proper divisors (255511060395).

255728444416 is an frugal number, since it uses more digits than its factorization.

255728444416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31626 (or 15805 counting only the distinct ones).

The product of its digits is 8601600, while the sum is 52.

The spelling of 255728444416 in words is "two hundred fifty-five billion, seven hundred twenty-eight million, four hundred forty-four thousand, four hundred sixteen".