255567403312 has 80 divisors (see below), whose sum is σ = 548512892928. Its totient is φ = 114607100160.

The previous prime is 255567403307. The next prime is 255567403321. The reversal of 255567403312 is 213304765552.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1633503 + ... + 1783105.

Almost surely, 2^255567403312 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 255567403312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (274256446464).

255567403312 is an abundant number, since it is smaller than the sum of its proper divisors (292945489616).

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

255567403312 is a wasteful number, since it uses less digits than its factorization.

255567403312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149858 (or 149852 counting only the distinct ones).

The product of its (nonzero) digits is 756000, while the sum is 43.

The spelling of 255567403312 in words is "two hundred fifty-five billion, five hundred sixty-seven million, four hundred three thousand, three hundred twelve".