255906663984 has 80 divisors (see below), whose sum is σ = 734621552640. Its totient is φ = 85293552960.

The previous prime is 255906663973. The next prime is 255906663989. The reversal of 255906663984 is 489366609552.

It is not an unprimeable number, because it can be changed into a prime (255906663989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5329009 + ... + 5376815.

It is an arithmetic number, because the mean of its divisors is an integer number (9182769408).

Almost surely, 2^255906663984 is an apocalyptic number.

255906663984 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

255906663984 is an abundant number, since it is smaller than the sum of its proper divisors (478714888656).

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

255906663984 is a wasteful number, since it uses less digits than its factorization.

255906663984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60215 (or 60203 counting only the distinct ones).

The product of its (nonzero) digits is 83980800, while the sum is 63.

The spelling of 255906663984 in words is "two hundred fifty-five billion, nine hundred six million, six hundred sixty-three thousand, nine hundred eighty-four".