168643888848 has 120 divisors (see below), whose sum is σ = 488931206400. Its totient is φ = 54199740672.

The previous prime is 168643888837. The next prime is 168643888859. The reversal of 168643888848 is 848888346861.

168643888848 is a `hidden beast` number, since 168 + 6 + 4 + 388 + 8 + 84 + 8 = 666.

168643888848 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (168643888837) and next prime (168643888859).

It is a super-2 number, since 2×168643888848² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2974461 + ... + 3030627.

It is an arithmetic number, because the mean of its divisors is an integer number (4074426720).

Almost surely, 2^168643888848 is an apocalyptic number.

168643888848 is a gapful number since it is divisible by the number (18) 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 168643888848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (244465603200).

168643888848 is an abundant number, since it is smaller than the sum of its proper divisors (320287317552).

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

168643888848 is a wasteful number, since it uses less digits than its factorization.

168643888848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56929 (or 56920 counting only the distinct ones).

The product of its digits is 452984832, while the sum is 72.

The spelling of 168643888848 in words is "one hundred sixty-eight billion, six hundred forty-three million, eight hundred eighty-eight thousand, eight hundred forty-eight".