168617121116 has 12 divisors (see below), whose sum is σ = 295094511432. Its totient is φ = 84304403568.

The previous prime is 168617121097. The next prime is 168617121131. The reversal of 168617121116 is 611121716861.

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, 947075 + ... + 1110938.

It is an arithmetic number, because the mean of its divisors is an integer number (24591209286).

Almost surely, 2^168617121116 is an apocalyptic number.

It is an amenable number.

168617121116 is a deficient number, since it is larger than the sum of its proper divisors (126477390316).

168617121116 is a wasteful number, since it uses less digits than its factorization.

168617121116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2078500 (or 2078498 counting only the distinct ones).

The product of its digits is 24192, while the sum is 41.

Adding to 168617121116 its reverse (611121716861), we get a palindrome (779738837977).

The spelling of 168617121116 in words is "one hundred sixty-eight billion, six hundred seventeen million, one hundred twenty-one thousand, one hundred sixteen".