16191488559 has 4 divisors (see below), whose sum is σ = 21588651416. Its totient is φ = 10794325704.

The previous prime is 16191488527. The next prime is 16191488581. The reversal of 16191488559 is 95588419161.

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

It is not a de Polignac number, because 16191488559 - 2⁵ = 16191488527 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16191488499 and 16191488508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16191488459) 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, 2698581424 + ... + 2698581429.

It is an arithmetic number, because the mean of its divisors is an integer number (5397162854).

Almost surely, 2^16191488559 is an apocalyptic number.

16191488559 is a deficient number, since it is larger than the sum of its proper divisors (5397162857).

16191488559 is an equidigital number, since it uses as much as digits as its factorization.

16191488559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5397162856.

The product of its digits is 3110400, while the sum is 57.

The spelling of 16191488559 in words is "sixteen billion, one hundred ninety-one million, four hundred eighty-eight thousand, five hundred fifty-nine".