168031815036 has 12 divisors (see below), whose sum is σ = 392074235112. Its totient is φ = 56010605008.

The previous prime is 168031815013. The next prime is 168031815067. The reversal of 168031815036 is 630518130861.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

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, 7001325615 + ... + 7001325638.

It is an arithmetic number, because the mean of its divisors is an integer number (32672852926).

Almost surely, 2^168031815036 is an apocalyptic number.

It is an amenable number.

168031815036 is an abundant number, since it is smaller than the sum of its proper divisors (224042420076).

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

168031815036 is a wasteful number, since it uses less digits than its factorization.

168031815036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14002651260 (or 14002651258 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 42.

Adding to 168031815036 its reverse (630518130861), we get a palindrome (798549945897).

The spelling of 168031815036 in words is "one hundred sixty-eight billion, thirty-one million, eight hundred fifteen thousand, thirty-six".