16318765194 has 32 divisors (see below), whose sum is σ = 32903392320. Its totient is φ = 5395433472.

The previous prime is 16318765193. The next prime is 16318765223. The reversal of 16318765194 is 49156781361.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16318765193) 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, 407242 + ... + 445514.

It is an arithmetic number, because the mean of its divisors is an integer number (1028231010).

Almost surely, 2^16318765194 is an apocalyptic number.

16318765194 is an abundant number, since it is smaller than the sum of its proper divisors (16584627126).

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

16318765194 is a wasteful number, since it uses less digits than its factorization.

16318765194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38854.

The product of its digits is 1088640, while the sum is 51.

The spelling of 16318765194 in words is "sixteen billion, three hundred eighteen million, seven hundred sixty-five thousand, one hundred ninety-four".