255816767712 has 96 divisors (see below), whose sum is σ = 732856771584. Its totient is φ = 77489484800.

The previous prime is 255816767699. The next prime is 255816767747. The reversal of 255816767712 is 217767618552.

It is a tau number, because it is divible by the number of its divisors (96).

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, 2689348 + ... + 2782844.

It is an arithmetic number, because the mean of its divisors is an integer number (7633924704).

Almost surely, 2^255816767712 is an apocalyptic number.

255816767712 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255816767712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (366428385792).

255816767712 is an abundant number, since it is smaller than the sum of its proper divisors (477040003872).

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

255816767712 is a wasteful number, since it uses less digits than its factorization.

255816767712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96112 (or 96104 counting only the distinct ones).

The product of its digits is 9878400, while the sum is 57.

The spelling of 255816767712 in words is "two hundred fifty-five billion, eight hundred sixteen million, seven hundred sixty-seven thousand, seven hundred twelve".