16256104287 has 4 divisors (see below), whose sum is σ = 21674805720. Its totient is φ = 10837402856.

The previous prime is 16256104283. The next prime is 16256104301. The reversal of 16256104287 is 78240165261.

It is a happy number.

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 16256104287 - 2² = 16256104283 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16256104283) 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, 2709350712 + ... + 2709350717.

It is an arithmetic number, because the mean of its divisors is an integer number (5418701430).

Almost surely, 2^16256104287 is an apocalyptic number.

16256104287 is a deficient number, since it is larger than the sum of its proper divisors (5418701433).

16256104287 is an equidigital number, since it uses as much as digits as its factorization.

16256104287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5418701432.

The product of its (nonzero) digits is 161280, while the sum is 42.

The spelling of 16256104287 in words is "sixteen billion, two hundred fifty-six million, one hundred four thousand, two hundred eighty-seven".