168144340100 has 72 divisors (see below), whose sum is σ = 398424978336. Its totient is φ = 61084800000.

The previous prime is 168144340087. The next prime is 168144340103. The reversal of 168144340100 is 1043441861.

It is not an unprimeable number, because it can be changed into a prime (168144340103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1083380 + ... + 1228820.

Almost surely, 2^168144340100 is an apocalyptic number.

168144340100 is a gapful number since it is divisible by the number (10) 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 168144340100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (199212489168).

168144340100 is an abundant number, since it is smaller than the sum of its proper divisors (230280638236).

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

168144340100 is a wasteful number, since it uses less digits than its factorization.

168144340100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146517 (or 146510 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

Adding to 168144340100 its reverse (1043441861), we get a palindrome (169187781961).

The spelling of 168144340100 in words is "one hundred sixty-eight billion, one hundred forty-four million, three hundred forty thousand, one hundred".