166668518286 has 48 divisors (see below), whose sum is σ = 362088767040. Its totient is φ = 55406592000.

The previous prime is 166668518267. The next prime is 166668518287. The reversal of 166668518286 is 682815866661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166668518287) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10387326 + ... + 10403358.

It is an arithmetic number, because the mean of its divisors is an integer number (7543515980).

Almost surely, 2^166668518286 is an apocalyptic number.

166668518286 is an abundant number, since it is smaller than the sum of its proper divisors (195420248754).

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

166668518286 is a wasteful number, since it uses less digits than its factorization.

166668518286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17561 (or 17558 counting only the distinct ones).

The product of its digits is 39813120, while the sum is 63.

The spelling of 166668518286 in words is "one hundred sixty-six billion, six hundred sixty-eight million, five hundred eighteen thousand, two hundred eighty-six".