16440392105 has 8 divisors (see below), whose sum is σ = 20766811200. Its totient is φ = 12460086576.

The previous prime is 16440392083. The next prime is 16440392107. The reversal of 16440392105 is 50129304461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16440392105 - 2¹⁰ = 16440391081 is a prime.

It is a super-3 number, since 3×16440392105³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (16440392107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86528285 + ... + 86528474.

It is an arithmetic number, because the mean of its divisors is an integer number (2595851400).

Almost surely, 2^16440392105 is an apocalyptic number.

It is an amenable number.

16440392105 is a deficient number, since it is larger than the sum of its proper divisors (4326419095).

16440392105 is a wasteful number, since it uses less digits than its factorization.

16440392105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173056783.

The product of its (nonzero) digits is 25920, while the sum is 35.

Adding to 16440392105 its reverse (50129304461), we get a palindrome (66569696566).

The spelling of 16440392105 in words is "sixteen billion, four hundred forty million, three hundred ninety-two thousand, one hundred five".