16438606833 has 8 divisors (see below), whose sum is σ = 23910700896. Its totient is φ = 9962792000.

The previous prime is 16438606831. The next prime is 16438606837. The reversal of 16438606833 is 33860683461.

It is a happy number.

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 16438606833 - 2¹ = 16438606831 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16438606831) 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, 249069768 + ... + 249069833.

It is an arithmetic number, because the mean of its divisors is an integer number (2988837612).

Almost surely, 2^16438606833 is an apocalyptic number.

It is an amenable number.

16438606833 is a deficient number, since it is larger than the sum of its proper divisors (7472094063).

16438606833 is a wasteful number, since it uses less digits than its factorization.

16438606833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498139615.

The product of its (nonzero) digits is 1492992, while the sum is 48.

The spelling of 16438606833 in words is "sixteen billion, four hundred thirty-eight million, six hundred six thousand, eight hundred thirty-three".