255305331516 has 12 divisors (see below), whose sum is σ = 595712440232. Its totient is φ = 85101777168.

The previous prime is 255305331511. The next prime is 255305331529. The reversal of 255305331516 is 615133503552.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255305331511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10637722135 + ... + 10637722158.

Almost surely, 2^255305331516 is an apocalyptic number.

It is an amenable number.

255305331516 is an abundant number, since it is smaller than the sum of its proper divisors (340407108716).

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

255305331516 is a wasteful number, since it uses less digits than its factorization.

255305331516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21275444300 (or 21275444298 counting only the distinct ones).

The product of its (nonzero) digits is 202500, while the sum is 39.

The spelling of 255305331516 in words is "two hundred fifty-five billion, three hundred five million, three hundred thirty-one thousand, five hundred sixteen".