16568872611 has 4 divisors (see below), whose sum is σ = 22091830152. Its totient is φ = 11045915072.

The previous prime is 16568872609. The next prime is 16568872631. The reversal of 16568872611 is 11627886561.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11627886561 = 3 ⋅3875962187.

It is a cyclic number.

It is not a de Polignac number, because 16568872611 - 2¹ = 16568872609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16568872631) 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, 2761478766 + ... + 2761478771.

It is an arithmetic number, because the mean of its divisors is an integer number (5522957538).

Almost surely, 2^16568872611 is an apocalyptic number.

16568872611 is a deficient number, since it is larger than the sum of its proper divisors (5522957541).

16568872611 is an equidigital number, since it uses as much as digits as its factorization.

16568872611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5522957540.

The product of its digits is 967680, while the sum is 51.

The spelling of 16568872611 in words is "sixteen billion, five hundred sixty-eight million, eight hundred seventy-two thousand, six hundred eleven".