255780466688 has 104 divisors (see below), whose sum is σ = 546763797216. Its totient is φ = 119344332800.

The previous prime is 255780466663. The next prime is 255780466691. The reversal of 255780466688 is 886664087552.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3829418 + ... + 3895638.

It is an arithmetic number, because the mean of its divisors is an integer number (5257344204).

Almost surely, 2^255780466688 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 255780466688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (273381898608).

255780466688 is an abundant number, since it is smaller than the sum of its proper divisors (290983330528).

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

255780466688 is an equidigital number, since it uses as much as digits as its factorization.

255780466688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66309 (or 66287 counting only the distinct ones).

The product of its (nonzero) digits is 154828800, while the sum is 65.

The spelling of 255780466688 in words is "two hundred fifty-five billion, seven hundred eighty million, four hundred sixty-six thousand, six hundred eighty-eight".