255518708128 has 48 divisors (see below), whose sum is σ = 505624182336. Its totient is φ = 127107120640.

The previous prime is 255518708111. The next prime is 255518708129. The reversal of 255518708128 is 821807815552.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (255518708129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9552693 + ... + 9579403.

It is an arithmetic number, because the mean of its divisors is an integer number (10533837132).

Almost surely, 2^255518708128 is an apocalyptic number.

It is an amenable number.

255518708128 is a deficient number, since it is larger than the sum of its proper divisors (250105474208).

255518708128 is a wasteful number, since it uses less digits than its factorization.

255518708128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28237 (or 28229 counting only the distinct ones).

The product of its (nonzero) digits is 1792000, while the sum is 52.

The spelling of 255518708128 in words is "two hundred fifty-five billion, five hundred eighteen million, seven hundred eight thousand, one hundred twenty-eight".