168236112028 has 48 divisors (see below), whose sum is σ = 328336636320. Its totient is φ = 74957819904.

The previous prime is 168236112013. The next prime is 168236112029. The reversal of 168236112028 is 820211632861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168236112029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2148900 + ... + 2225812.

It is an arithmetic number, because the mean of its divisors is an integer number (6840346590).

Almost surely, 2^168236112028 is an apocalyptic number.

It is an amenable number.

168236112028 is a deficient number, since it is larger than the sum of its proper divisors (160100524292).

168236112028 is a wasteful number, since it uses less digits than its factorization.

168236112028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78646 (or 78644 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

Adding to 168236112028 its reverse (820211632861), we get a palindrome (988447744889).

The spelling of 168236112028 in words is "one hundred sixty-eight billion, two hundred thirty-six million, one hundred twelve thousand, twenty-eight".