16450665018 has 32 divisors (see below), whose sum is σ = 33551931456. Its totient is φ = 5375305728.

The previous prime is 16450665017. The next prime is 16450665041. The reversal of 16450665018 is 81056605461.

16450665018 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (16450665017) 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 15 ways as a sum of consecutive naturals, for example, 344221 + ... + 389087.

It is an arithmetic number, because the mean of its divisors is an integer number (1048497858).

Almost surely, 2^16450665018 is an apocalyptic number.

16450665018 is an abundant number, since it is smaller than the sum of its proper divisors (17101266438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16450665018 is a wasteful number, since it uses less digits than its factorization.

16450665018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46078.

The product of its (nonzero) digits is 172800, while the sum is 42.

The spelling of 16450665018 in words is "sixteen billion, four hundred fifty million, six hundred sixty-five thousand, eighteen".