256341205271 has 8 divisors (see below), whose sum is σ = 263277240720. Its totient is φ = 249405585408.

The previous prime is 256341205243. The next prime is 256341205321. The reversal of 256341205271 is 172502143652.

256341205271 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 256341205271 - 2¹⁰ = 256341204247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256341205171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1460960 + ... + 1626986.

It is an arithmetic number, because the mean of its divisors is an integer number (32909655090).

Almost surely, 2^256341205271 is an apocalyptic number.

256341205271 is a deficient number, since it is larger than the sum of its proper divisors (6936035449).

256341205271 is a wasteful number, since it uses less digits than its factorization.

256341205271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207793.

The product of its (nonzero) digits is 100800, while the sum is 38.

The spelling of 256341205271 in words is "two hundred fifty-six billion, three hundred forty-one million, two hundred five thousand, two hundred seventy-one".