168471968256 has 80 divisors (see below), whose sum is σ = 498688766400. Its totient is φ = 56157318144.

The previous prime is 168471968219. The next prime is 168471968257. The reversal of 168471968256 is 652869174861.

It is a super-3 number, since 3×168471968256³ (a number of 35 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 168471968193 and 168471968202.

It is not an unprimeable number, because it can be changed into a prime (168471968257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6079636 + ... + 6107283.

It is an arithmetic number, because the mean of its divisors is an integer number (6233609580).

Almost surely, 2^168471968256 is an apocalyptic number.

168471968256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

168471968256 is an abundant number, since it is smaller than the sum of its proper divisors (330216798144).

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

168471968256 is an equidigital number, since it uses as much as digits as its factorization.

168471968256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12186946 (or 12186924 counting only the distinct ones).

The product of its digits is 34836480, while the sum is 63.

The spelling of 168471968256 in words is "one hundred sixty-eight billion, four hundred seventy-one million, nine hundred sixty-eight thousand, two hundred fifty-six".