256614166611271 has 8 divisors (see below), whose sum is σ = 293301108080640. Its totient is φ = 219934168844568.

The previous prime is 256614166611259. The next prime is 256614166611289. The reversal of 256614166611271 is 172116661416652.

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 256614166611271 - 2²⁹ = 256613629740359 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 (256614166611221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1735846471 + ... + 1735994296.

It is an arithmetic number, because the mean of its divisors is an integer number (36662638510080).

Almost surely, 2^{256614166611271} is an apocalyptic number.

256614166611271 is a deficient number, since it is larger than the sum of its proper divisors (36686941469369).

256614166611271 is a wasteful number, since it uses less digits than its factorization.

256614166611271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3471851333.

The product of its digits is 4354560, while the sum is 55.

The spelling of 256614166611271 in words is "two hundred fifty-six trillion, six hundred fourteen billion, one hundred sixty-six million, six hundred eleven thousand, two hundred seventy-one".