16608579173 has 2 divisors, whose sum is σ = 16608579174. Its totient is φ = 16608579172.

The previous prime is 16608579149. The next prime is 16608579227. The reversal of 16608579173 is 37197580661.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10128812164 + 6479767009 = 100642^2 + 80497^2 .

It is a cyclic number.

It is not a de Polignac number, because 16608579173 - 2⁶ = 16608579109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16608579073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8304289586 + 8304289587.

It is an arithmetic number, because the mean of its divisors is an integer number (8304289587).

Almost surely, 2^16608579173 is an apocalyptic number.

It is an amenable number.

16608579173 is a deficient number, since it is larger than the sum of its proper divisors (1).

16608579173 is an equidigital number, since it uses as much as digits as its factorization.

16608579173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1905120, while the sum is 53.

The spelling of 16608579173 in words is "sixteen billion, six hundred eight million, five hundred seventy-nine thousand, one hundred seventy-three".