16396034209 has 3 divisors (see below), whose sum is σ = 16396162257. Its totient is φ = 16395906162.

The previous prime is 16396034147. The next prime is 16396034231. The reversal of 16396034209 is 90243069361.

The square root of 16396034209 is 128047.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 16396034209 - 2⁹ = 16396033697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16396034279) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 64024 + ... + 192070.

It is an arithmetic number, because the mean of its divisors is an integer number (5465387419).

Almost surely, 2^16396034209 is an apocalyptic number.

16396034209 is the 128047-th square number.

16396034209 is the 64024-th centered octagonal number.

It is an amenable number.

16396034209 is a deficient number, since it is larger than the sum of its proper divisors (128048).

16396034209 is an frugal number, since it uses more digits than its factorization.

16396034209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256094 (or 128047 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 43.

The spelling of 16396034209 in words is "sixteen billion, three hundred ninety-six million, thirty-four thousand, two hundred nine".