16668344450275 has 24 divisors (see below), whose sum is σ = 23634214813440. Its totient is φ = 11423533424160.

The previous prime is 16668344450273. The next prime is 16668344450309. The reversal of 16668344450275 is 57205444386661.

It is not a de Polignac number, because 16668344450275 - 2¹ = 16668344450273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16668344450273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25461205 + ... + 26107654.

It is an arithmetic number, because the mean of its divisors is an integer number (984758950560).

Almost surely, 2^{16668344450275} is an apocalyptic number.

16668344450275 is a deficient number, since it is larger than the sum of its proper divisors (6965870363165).

16668344450275 is a wasteful number, since it uses less digits than its factorization.

16668344450275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51570723 (or 51570718 counting only the distinct ones).

The product of its (nonzero) digits is 116121600, while the sum is 61.

The spelling of 16668344450275 in words is "sixteen trillion, six hundred sixty-eight billion, three hundred forty-four million, four hundred fifty thousand, two hundred seventy-five".