16505050550065 has 16 divisors (see below), whose sum is σ = 24693270433920. Its totient is φ = 10288862680320.

The previous prime is 16505050550059. The next prime is 16505050550069. The reversal of 16505050550065 is 56005505050561.

16505050550065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16505050550065 - 2⁵ = 16505050550033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16505050550069) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21435130200 + ... + 21435130969.

It is an arithmetic number, because the mean of its divisors is an integer number (1543329402120).

Almost surely, 2^{16505050550065} is an apocalyptic number.

It is an amenable number.

16505050550065 is a deficient number, since it is larger than the sum of its proper divisors (8188219883855).

16505050550065 is a wasteful number, since it uses less digits than its factorization.

16505050550065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42870261192.

The product of its (nonzero) digits is 562500, while the sum is 43.

The spelling of 16505050550065 in words is "sixteen trillion, five hundred five billion, fifty million, five hundred fifty thousand, sixty-five".