16338412209 has 16 divisors (see below), whose sum is σ = 24920127360. Its totient is φ = 9327423360.

The previous prime is 16338412201. The next prime is 16338412217. The reversal of 16338412209 is 90221483361.

It is an interprime number because it is at equal distance from previous prime (16338412201) and next prime (16338412217).

It is not a de Polignac number, because 16338412209 - 2³ = 16338412201 is a prime.

It is a super-2 number, since 2×16338412209² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16338412201) 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, 344364 + ... + 388925.

It is an arithmetic number, because the mean of its divisors is an integer number (1557507960).

Almost surely, 2^16338412209 is an apocalyptic number.

It is an amenable number.

16338412209 is a deficient number, since it is larger than the sum of its proper divisors (8581715151).

16338412209 is a wasteful number, since it uses less digits than its factorization.

16338412209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734360.

The product of its (nonzero) digits is 62208, while the sum is 39.

The spelling of 16338412209 in words is "sixteen billion, three hundred thirty-eight million, four hundred twelve thousand, two hundred nine".