166668518334 has 16 divisors (see below), whose sum is σ = 333342448272. Its totient is φ = 55555270848.

The previous prime is 166668518287. The next prime is 166668518411. The reversal of 166668518334 is 433815866661.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253002 + ... + 630354.

It is an arithmetic number, because the mean of its divisors is an integer number (20833903017).

Almost surely, 2^166668518334 is an apocalyptic number.

166668518334 is an abundant number, since it is smaller than the sum of its proper divisors (166673929938).

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

166668518334 is a wasteful number, since it uses less digits than its factorization.

166668518334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450971.

The product of its digits is 14929920, while the sum is 57.

The spelling of 166668518334 in words is "one hundred sixty-six billion, six hundred sixty-eight million, five hundred eighteen thousand, three hundred thirty-four".