168831508673968 has 160 divisors (see below), whose sum is σ = 377451386672256. Its totient is φ = 71661221904384.

The previous prime is 168831508673957. The next prime is 168831508674011. The reversal of 168831508673968 is 869376805138861.

It is a super-2 number, since 2×168831508673968² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7789935580 + ... + 7789957252.

Almost surely, 2^{168831508673968} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 168831508673968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188725693336128).

168831508673968 is an abundant number, since it is smaller than the sum of its proper divisors (208619877998288).

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

168831508673968 is a wasteful number, since it uses less digits than its factorization.

168831508673968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23391 (or 23385 counting only the distinct ones).

The product of its (nonzero) digits is 2508226560, while the sum is 79.

The spelling of 168831508673968 in words is "one hundred sixty-eight trillion, eight hundred thirty-one billion, five hundred eight million, six hundred seventy-three thousand, nine hundred sixty-eight".