16591034618 has 32 divisors (see below), whose sum is σ = 26263560960. Its totient is φ = 7849658880.

The previous prime is 16591034611. The next prime is 16591034627. The reversal of 16591034618 is 81643019561.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16591034611) 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, 565163 + ... + 593793.

It is an arithmetic number, because the mean of its divisors is an integer number (820736280).

Almost surely, 2^16591034618 is an apocalyptic number.

16591034618 is a deficient number, since it is larger than the sum of its proper divisors (9672526342).

16591034618 is a wasteful number, since it uses less digits than its factorization.

16591034618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28862.

The product of its (nonzero) digits is 155520, while the sum is 44.

The spelling of 16591034618 in words is "sixteen billion, five hundred ninety-one million, thirty-four thousand, six hundred eighteen".