256344161159 has 8 divisors (see below), whose sum is σ = 266197843968. Its totient is φ = 246589510680.

The previous prime is 256344161147. The next prime is 256344161179. The reversal of 256344161159 is 951161443652.

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 256344161159 - 2²⁴ = 256327383943 is a prime.

It is a super-2 number, since 2×256344161159² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256344161119) 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, 24752807 + ... + 24763160.

It is an arithmetic number, because the mean of its divisors is an integer number (33274730496).

Almost surely, 2^256344161159 is an apocalyptic number.

256344161159 is a deficient number, since it is larger than the sum of its proper divisors (9853682809).

256344161159 is a wasteful number, since it uses less digits than its factorization.

256344161159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49516165.

The product of its digits is 777600, while the sum is 47.

The spelling of 256344161159 in words is "two hundred fifty-six billion, three hundred forty-four million, one hundred sixty-one thousand, one hundred fifty-nine".