168636285399 has 16 divisors (see below), whose sum is σ = 226234368000. Its totient is φ = 111732284640.

The previous prime is 168636285353. The next prime is 168636285401. The reversal of 168636285399 is 993582636861.

It is a happy number.

It is not a de Polignac number, because 168636285399 - 2¹⁹ = 168635761111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168636285329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 487477 + ... + 758225.

It is an arithmetic number, because the mean of its divisors is an integer number (14139648000).

Almost surely, 2^168636285399 is an apocalyptic number.

168636285399 is a deficient number, since it is larger than the sum of its proper divisors (57598082601).

168636285399 is a wasteful number, since it uses less digits than its factorization.

168636285399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272030.

The product of its digits is 100776960, while the sum is 66.

The spelling of 168636285399 in words is "one hundred sixty-eight billion, six hundred thirty-six million, two hundred eighty-five thousand, three hundred ninety-nine".