16501605005 has 8 divisors (see below), whose sum is σ = 19819137024. Its totient is φ = 13189810000.

The previous prime is 16501604981. The next prime is 16501605017. The reversal of 16501605005 is 50050610561.

16501605005 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 not a de Polignac number, because 16501605005 - 2¹⁸ = 16501342861 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 1427921 + ... + 1439430.

It is an arithmetic number, because the mean of its divisors is an integer number (2477392128).

Almost surely, 2^16501605005 is an apocalyptic number.

It is an amenable number.

16501605005 is a deficient number, since it is larger than the sum of its proper divisors (3317532019).

16501605005 is a wasteful number, since it uses less digits than its factorization.

16501605005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2868507.

The product of its (nonzero) digits is 4500, while the sum is 29.

The spelling of 16501605005 in words is "sixteen billion, five hundred one million, six hundred five thousand, five".