255657168760 has 96 divisors (see below), whose sum is σ = 692217576000. Its totient is φ = 84631319808.

The previous prime is 255657168749. The next prime is 255657168761. The reversal of 255657168760 is 67861756552.

It is a Harshad number since it is a multiple of its sum of digits (58).

It is a junction number, because it is equal to n+sod(n) for n = 255657168695 and 255657168704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255657168761) 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, 2192080 + ... + 2305759.

It is an arithmetic number, because the mean of its divisors is an integer number (7210599750).

Almost surely, 2^255657168760 is an apocalyptic number.

255657168760 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255657168760 is an abundant number, since it is smaller than the sum of its proper divisors (436560407240).

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

255657168760 is a wasteful number, since it uses less digits than its factorization.

255657168760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4497893 (or 4497882 counting only the distinct ones).

The product of its (nonzero) digits is 21168000, while the sum is 58.

The spelling of 255657168760 in words is "two hundred fifty-five billion, six hundred fifty-seven million, one hundred sixty-eight thousand, seven hundred sixty".