16668271323 has 48 divisors (see below), whose sum is σ = 27307792512. Its totient is φ = 9708336000.

The previous prime is 16668271313. The next prime is 16668271339. The reversal of 16668271323 is 32317286661.

16668271323 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16668271323 - 2¹² = 16668267227 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (16668271313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 241308 + ... + 302598.

It is an arithmetic number, because the mean of its divisors is an integer number (568912344).

Almost surely, 2^16668271323 is an apocalyptic number.

16668271323 is a deficient number, since it is larger than the sum of its proper divisors (10639521189).

16668271323 is a wasteful number, since it uses less digits than its factorization.

16668271323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61416 (or 61413 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The spelling of 16668271323 in words is "sixteen billion, six hundred sixty-eight million, two hundred seventy-one thousand, three hundred twenty-three".