255603646755 has 24 divisors (see below), whose sum is σ = 443120544672. Its totient is φ = 136299106944.

The previous prime is 255603646733. The next prime is 255603646757. The reversal of 255603646755 is 557646306552.

255603646755 is a `hidden beast` number, since 2 + 5 + 560 + 3 + 6 + 4 + 6 + 75 + 5 = 666.

It is not a de Polignac number, because 255603646755 - 2¹² = 255603642659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (255603646757) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 202474 + ... + 743103.

It is an arithmetic number, because the mean of its divisors is an integer number (18463356028).

Almost surely, 2^255603646755 is an apocalyptic number.

255603646755 is a deficient number, since it is larger than the sum of its proper divisors (187516897917).

255603646755 is a wasteful number, since it uses less digits than its factorization.

255603646755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 951595 (or 951592 counting only the distinct ones).

The product of its (nonzero) digits is 22680000, while the sum is 54.

The spelling of 255603646755 in words is "two hundred fifty-five billion, six hundred three million, six hundred forty-six thousand, seven hundred fifty-five".