16339921447 has 8 divisors (see below), whose sum is σ = 16622474400. Its totient is φ = 16059567744.

The previous prime is 16339921379. The next prime is 16339921453. The reversal of 16339921447 is 74412993361.

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 16339921447 - 2²⁷ = 16205703719 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16339921447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16339922447) 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, 534822 + ... + 564547.

It is an arithmetic number, because the mean of its divisors is an integer number (2077809300).

Almost surely, 2^16339921447 is an apocalyptic number.

16339921447 is a deficient number, since it is larger than the sum of its proper divisors (282552953).

16339921447 is a wasteful number, since it uses less digits than its factorization.

16339921447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1099625.

The product of its digits is 979776, while the sum is 49.

The spelling of 16339921447 in words is "sixteen billion, three hundred thirty-nine million, nine hundred twenty-one thousand, four hundred forty-seven".