255804121682244 has 30 divisors (see below), whose sum is σ = 668722503287454. Its totient is φ = 85268040560640.

The previous prime is 255804121682243. The next prime is 255804121682261. The reversal of 255804121682244 is 442286121408552.

It is a happy number.

255804121682244 is a `hidden beast` number, since 2 + 5 + 5 + 8 + 0 + 412 + 168 + 22 + 44 = 666.

It can be written as a sum of positive squares in only one way, i.e., 255801958316100 + 2163366144 = 15993810^2 + 46512^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (255804121682243) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 394759446717 + ... + 394759447364.

Almost surely, 2^{255804121682244} is an apocalyptic number.

It is an amenable number.

255804121682244 is an abundant number, since it is smaller than the sum of its proper divisors (412918381605210).

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

255804121682244 is a wasteful number, since it uses less digits than its factorization.

255804121682244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789518894097 (or 789518894086 counting only the distinct ones).

The product of its (nonzero) digits is 9830400, while the sum is 54.

The spelling of 255804121682244 in words is "two hundred fifty-five trillion, eight hundred four billion, one hundred twenty-one million, six hundred eighty-two thousand, two hundred forty-four".