166668518338 has 8 divisors (see below), whose sum is σ = 285717460032. Its totient is φ = 71429364996.

The previous prime is 166668518287. The next prime is 166668518411. The reversal of 166668518338 is 833815866661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5952447070 + ... + 5952447097.

It is an arithmetic number, because the mean of its divisors is an integer number (35714682504).

Almost surely, 2^166668518338 is an apocalyptic number.

166668518338 is a deficient number, since it is larger than the sum of its proper divisors (119048941694).

166668518338 is a wasteful number, since it uses less digits than its factorization.

166668518338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11904894176.

The product of its digits is 29859840, while the sum is 61.

The spelling of 166668518338 in words is "one hundred sixty-six billion, six hundred sixty-eight million, five hundred eighteen thousand, three hundred thirty-eight".