16601604913 has 8 divisors (see below), whose sum is σ = 17009707680. Its totient is φ = 16193653920.

The previous prime is 16601604893. The next prime is 16601604917. The reversal of 16601604913 is 31940610661.

16601604913 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16601604913 is a prime.

It is a super-2 number, since 2×16601604913² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16601604917) 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, 201906 + ... + 271972.

It is an arithmetic number, because the mean of its divisors is an integer number (2126213460).

Almost surely, 2^16601604913 is an apocalyptic number.

It is an amenable number.

16601604913 is a deficient number, since it is larger than the sum of its proper divisors (408102767).

16601604913 is an equidigital number, since it uses as much as digits as its factorization.

16601604913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75887.

The product of its (nonzero) digits is 23328, while the sum is 37.

The spelling of 16601604913 in words is "sixteen billion, six hundred one million, six hundred four thousand, nine hundred thirteen".