166666668337 has 8 divisors (see below), whose sum is σ = 179504902080. Its totient is φ = 153830966160.

The previous prime is 166666668319. The next prime is 166666668341. The reversal of 166666668337 is 733866666661.

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 166666668337 - 2³¹ = 164519184689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166666665337) 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, 495037 + ... + 760522.

It is an arithmetic number, because the mean of its divisors is an integer number (22438112760).

Almost surely, 2^166666668337 is an apocalyptic number.

It is an amenable number.

166666668337 is a deficient number, since it is larger than the sum of its proper divisors (12838233743).

166666668337 is a wasteful number, since it uses less digits than its factorization.

166666668337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1265783.

The product of its digits is 141087744, while the sum is 64.

The spelling of 166666668337 in words is "one hundred sixty-six billion, six hundred sixty-six million, six hundred sixty-eight thousand, three hundred thirty-seven".