255655735880 has 64 divisors (see below), whose sum is σ = 578481583680. Its totient is φ = 101685024000.

The previous prime is 255655735879. The next prime is 255655735897. The reversal of 255655735880 is 88537556552.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5145155 + ... + 5194605.

It is an arithmetic number, because the mean of its divisors is an integer number (9038774745).

Almost surely, 2^255655735880 is an apocalyptic number.

255655735880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255655735880 is an abundant number, since it is smaller than the sum of its proper divisors (322825847800).

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

255655735880 is a wasteful number, since it uses less digits than its factorization.

255655735880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50190 (or 50186 counting only the distinct ones).

The product of its (nonzero) digits is 50400000, while the sum is 59.

The spelling of 255655735880 in words is "two hundred fifty-five billion, six hundred fifty-five million, seven hundred thirty-five thousand, eight hundred eighty".