256473168600 has 192 divisors, whose sum is σ = 867693214080. Its totient is φ = 62150400000.

The previous prime is 256473168593. The next prime is 256473168631. The reversal of 256473168600 is 6861374652.

It is a self number, because there is not a number n which added to its sum of digits gives 256473168600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20592375 + ... + 20604825.

It is an arithmetic number, because the mean of its divisors is an integer number (4519235490).

Almost surely, 2^256473168600 is an apocalyptic number.

256473168600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 256473168600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (433846607040).

256473168600 is an abundant number, since it is smaller than the sum of its proper divisors (611220045480).

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

256473168600 is a wasteful number, since it uses less digits than its factorization.

256473168600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15602 (or 15593 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 48.

The spelling of 256473168600 in words is "two hundred fifty-six billion, four hundred seventy-three million, one hundred sixty-eight thousand, six hundred".