16256323871 has 4 divisors (see below), whose sum is σ = 16295122200. Its totient is φ = 16217525544.

The previous prime is 16256323841. The next prime is 16256323873. The reversal of 16256323871 is 17832365261.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16256323871 - 2¹⁰ = 16256322847 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 (16256323873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19398536 + ... + 19399373.

It is an arithmetic number, because the mean of its divisors is an integer number (4073780550).

Almost surely, 2^16256323871 is an apocalyptic number.

16256323871 is a deficient number, since it is larger than the sum of its proper divisors (38798329).

16256323871 is an equidigital number, since it uses as much as digits as its factorization.

16256323871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38798328.

The product of its digits is 362880, while the sum is 44.

The spelling of 16256323871 in words is "sixteen billion, two hundred fifty-six million, three hundred twenty-three thousand, eight hundred seventy-one".