255381006558844 has 24 divisors (see below), whose sum is σ = 448175130137280. Its totient is φ = 127331129792064.

The previous prime is 255381006558803. The next prime is 255381006558871. The reversal of 255381006558844 is 448855600183552.

It is a super-2 number, since 2×255381006558844² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

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, 13680964 + ... + 26418379.

It is an arithmetic number, because the mean of its divisors is an integer number (18673963755720).

Almost surely, 2^{255381006558844} is an apocalyptic number.

It is an amenable number.

255381006558844 is a deficient number, since it is larger than the sum of its proper divisors (192794123578436).

255381006558844 is a wasteful number, since it uses less digits than its factorization.

255381006558844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40103829 (or 40103827 counting only the distinct ones).

The product of its (nonzero) digits is 184320000, while the sum is 64.

The spelling of 255381006558844 in words is "two hundred fifty-five trillion, three hundred eighty-one billion, six million, five hundred fifty-eight thousand, eight hundred forty-four".