16517673069121 has 8 divisors (see below), whose sum is σ = 18949117613184. Its totient is φ = 14104172765760.

The previous prime is 16517673069071. The next prime is 16517673069179. The reversal of 16517673069121 is 12196037671561.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16517673069121 - 2¹⁷ = 16517672938049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16517673063121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4486058200 + ... + 4486061881.

It is an arithmetic number, because the mean of its divisors is an integer number (2368639701648).

Almost surely, 2^{16517673069121} is an apocalyptic number.

It is an amenable number.

16517673069121 is a deficient number, since it is larger than the sum of its proper divisors (2431444544063).

16517673069121 is an equidigital number, since it uses as much as digits as its factorization.

16517673069121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8972120351.

The product of its (nonzero) digits is 2857680, while the sum is 55.

The spelling of 16517673069121 in words is "sixteen trillion, five hundred seventeen billion, six hundred seventy-three million, sixty-nine thousand, one hundred twenty-one".