166522210135686 has 96 divisors (see below), whose sum is σ = 362580473642400. Its totient is φ = 55234024796160.

The previous prime is 166522210135681. The next prime is 166522210135777. The reversal of 166522210135686 is 686531012225661.

166522210135686 is a `hidden beast` number, since 1 + 6 + 6 + 52 + 2 + 2 + 10 + 13 + 568 + 6 = 666.

166522210135686 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×166522210135686³ (a number of 44 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166522210135681) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6014006530 + ... + 6014034218.

It is an arithmetic number, because the mean of its divisors is an integer number (3776879933775).

Almost surely, 2^{166522210135686} is an apocalyptic number.

166522210135686 is an abundant number, since it is smaller than the sum of its proper divisors (196058263506714).

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

166522210135686 is a wasteful number, since it uses less digits than its factorization.

166522210135686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30134 (or 30131 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 54.

The spelling of 166522210135686 in words is "one hundred sixty-six trillion, five hundred twenty-two billion, two hundred ten million, one hundred thirty-five thousand, six hundred eighty-six".