16673686513 has 12 divisors (see below), whose sum is σ = 19322388432. Its totient is φ = 14266253120.

The previous prime is 16673686507. The next prime is 16673686529. The reversal of 16673686513 is 31568637661.

It is a happy number.

It is not a de Polignac number, because 16673686513 - 2¹⁷ = 16673555441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16673686553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2619295 + ... + 2625652.

It is an arithmetic number, because the mean of its divisors is an integer number (1610199036).

Almost surely, 2^16673686513 is an apocalyptic number.

It is an amenable number.

16673686513 is a deficient number, since it is larger than the sum of its proper divisors (2648701919).

16673686513 is a wasteful number, since it uses less digits than its factorization.

16673686513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5244992 (or 5244975 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 52.

The spelling of 16673686513 in words is "sixteen billion, six hundred seventy-three million, six hundred eighty-six thousand, five hundred thirteen".