16676443456717 has 4 divisors (see below), whose sum is σ = 18192483770976. Its totient is φ = 15160403142460.

The previous prime is 16676443456697. The next prime is 16676443456727. The reversal of 16676443456717 is 71765434467661.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16676443456717 - 2²³ = 16676435068109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16676443456727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 758020157113 + ... + 758020157134.

It is an arithmetic number, because the mean of its divisors is an integer number (4548120942744).

Almost surely, 2^{16676443456717} is an apocalyptic number.

It is an amenable number.

16676443456717 is a deficient number, since it is larger than the sum of its proper divisors (1516040314259).

16676443456717 is a wasteful number, since it uses less digits than its factorization.

16676443456717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1516040314258.

The product of its digits is 426746880, while the sum is 67.

The spelling of 16676443456717 in words is "sixteen trillion, six hundred seventy-six billion, four hundred forty-three million, four hundred fifty-six thousand, seven hundred seventeen".