16309317018 has 32 divisors (see below), whose sum is σ = 34315358400. Its totient is φ = 5160006656.

The previous prime is 16309317001. The next prime is 16309317019. The reversal of 16309317018 is 81071390361.

It is not an unprimeable number, because it can be changed into a prime (16309317019) 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, 784071 + ... + 804602.

It is an arithmetic number, because the mean of its divisors is an integer number (1072354950).

Almost surely, 2^16309317018 is an apocalyptic number.

16309317018 is an abundant number, since it is smaller than the sum of its proper divisors (18006041382).

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

16309317018 is a wasteful number, since it uses less digits than its factorization.

16309317018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1588766.

The product of its (nonzero) digits is 27216, while the sum is 39.

The spelling of 16309317018 in words is "sixteen billion, three hundred nine million, three hundred seventeen thousand, eighteen".