255461881814460 has 72 divisors (see below), whose sum is σ = 775056991297680. Its totient is φ = 68109458611968.

The previous prime is 255461881814413. The next prime is 255461881814479. The reversal of 255461881814460 is 64418188164552.

255461881814460 is a `hidden beast` number, since 2 + 5 + 5 + 4 + 6 + 1 + 8 + 8 + 181 + 446 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 141914262 + ... + 143703101.

It is an arithmetic number, because the mean of its divisors is an integer number (10764680434690).

Almost surely, 2^{255461881814460} is an apocalyptic number.

255461881814460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255461881814460 is an abundant number, since it is smaller than the sum of its proper divisors (519595109483220).

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

255461881814460 is a wasteful number, since it uses less digits than its factorization.

255461881814460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285622347 (or 285622342 counting only the distinct ones).

The product of its (nonzero) digits is 58982400, while the sum is 63.

The spelling of 255461881814460 in words is "two hundred fifty-five trillion, four hundred sixty-one billion, eight hundred eighty-one million, eight hundred fourteen thousand, four hundred sixty".