168312171104 has 96 divisors (see below), whose sum is σ = 415604722176. Its totient is φ = 65183339520.

The previous prime is 168312171047. The next prime is 168312171113. The reversal of 168312171104 is 401171213861.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 206972 + ... + 616004.

It is an arithmetic number, because the mean of its divisors is an integer number (4329215856).

Almost surely, 2^168312171104 is an apocalyptic number.

168312171104 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 168312171104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (207802361088).

168312171104 is an abundant number, since it is smaller than the sum of its proper divisors (247292551072).

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

168312171104 is a wasteful number, since it uses less digits than its factorization.

168312171104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409228 (or 409220 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 35.

Adding to 168312171104 its reverse (401171213861), we get a palindrome (569483384965).

The spelling of 168312171104 in words is "one hundred sixty-eight billion, three hundred twelve million, one hundred seventy-one thousand, one hundred four".