255831870336 has 128 divisors (see below), whose sum is σ = 777042201600. Its totient is φ = 73056258048.

The previous prime is 255831870323. The next prime is 255831870361. The reversal of 255831870336 is 633078138552.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5279305 + ... + 5327543.

It is an arithmetic number, because the mean of its divisors is an integer number (6070642200).

Almost surely, 2^255831870336 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 255831870336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (388521100800).

255831870336 is an abundant number, since it is smaller than the sum of its proper divisors (521210331264).

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

255831870336 is a wasteful number, since it uses less digits than its factorization.

255831870336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50236 (or 50224 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 51.

The spelling of 255831870336 in words is "two hundred fifty-five billion, eight hundred thirty-one million, eight hundred seventy thousand, three hundred thirty-six".