16434084818 has 4 divisors (see below), whose sum is σ = 24651127230. Its totient is φ = 8217042408.

The previous prime is 16434084809. The next prime is 16434084853. The reversal of 16434084818 is 81848043461.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 8434034569 + 8000050249 = 91837^2 + 89443^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4108521203 + ... + 4108521206.

Almost surely, 2^16434084818 is an apocalyptic number.

16434084818 is a deficient number, since it is larger than the sum of its proper divisors (8217042412).

16434084818 is an equidigital number, since it uses as much as digits as its factorization.

16434084818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8217042411.

The product of its (nonzero) digits is 589824, while the sum is 47.

The spelling of 16434084818 in words is "sixteen billion, four hundred thirty-four million, eighty-four thousand, eight hundred eighteen".