16617660032173 has 4 divisors (see below), whose sum is σ = 16649433761248. Its totient is φ = 16585886303100.

The previous prime is 16617660032167. The next prime is 16617660032191. The reversal of 16617660032173 is 37123006671661.

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 a de Polignac number, because none of the positive numbers 2^k-16617660032173 is a prime.

It is a super-2 number, since 2×16617660032173² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16617660032143) 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, 15886863753 + ... + 15886864798.

It is an arithmetic number, because the mean of its divisors is an integer number (4162358440312).

Almost surely, 2^{16617660032173} is an apocalyptic number.

It is an amenable number.

16617660032173 is a deficient number, since it is larger than the sum of its proper divisors (31773729075).

16617660032173 is an equidigital number, since it uses as much as digits as its factorization.

16617660032173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31773729074.

The product of its (nonzero) digits is 1143072, while the sum is 49.

The spelling of 16617660032173 in words is "sixteen trillion, six hundred seventeen billion, six hundred sixty million, thirty-two thousand, one hundred seventy-three".