16445934923 has 8 divisors (see below), whose sum is σ = 18322744320. Its totient is φ = 14632746280.

The previous prime is 16445934907. The next prime is 16445934943. The reversal of 16445934923 is 32943954461.

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 16445934923 - 2⁴ = 16445934907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16445934943) 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, 15904643 + ... + 15905676.

It is an arithmetic number, because the mean of its divisors is an integer number (2290343040).

Almost surely, 2^16445934923 is an apocalyptic number.

16445934923 is a deficient number, since it is larger than the sum of its proper divisors (1876809397).

16445934923 is a wasteful number, since it uses less digits than its factorization.

16445934923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31810377.

The product of its digits is 2799360, while the sum is 50.

The spelling of 16445934923 in words is "sixteen billion, four hundred forty-five million, nine hundred thirty-four thousand, nine hundred twenty-three".