166669742384 has 80 divisors (see below), whose sum is σ = 343357785600. Its totient is φ = 78224735232.

The previous prime is 166669742353. The next prime is 166669742423. The reversal of 166669742384 is 483247966661.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 27414257 + ... + 27420335.

It is an arithmetic number, because the mean of its divisors is an integer number (4291972320).

Almost surely, 2^166669742384 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166669742384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171678892800).

166669742384 is an abundant number, since it is smaller than the sum of its proper divisors (176688043216).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

166669742384 is a wasteful number, since it uses less digits than its factorization.

166669742384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7750 (or 7744 counting only the distinct ones).

The product of its digits is 62705664, while the sum is 62.

The spelling of 166669742384 in words is "one hundred sixty-six billion, six hundred sixty-nine million, seven hundred forty-two thousand, three hundred eighty-four".