16671316671 has 16 divisors (see below), whose sum is σ = 24995819520. Its totient is φ = 10980303480.

The previous prime is 16671316637. The next prime is 16671316709. The reversal of 16671316671 is 17661317661.

It is not a de Polignac number, because 16671316671 - 2³⁰ = 15597574847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16671316601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3717375 + ... + 3721856.

It is an arithmetic number, because the mean of its divisors is an integer number (1562238720).

Almost surely, 2^16671316671 is an apocalyptic number.

16671316671 is a deficient number, since it is larger than the sum of its proper divisors (8324502849).

16671316671 is an equidigital number, since it uses as much as digits as its factorization.

16671316671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7439323 (or 7439317 counting only the distinct ones).

The product of its digits is 190512, while the sum is 45.

The spelling of 16671316671 in words is "sixteen billion, six hundred seventy-one million, three hundred sixteen thousand, six hundred seventy-one".