68621168 has 120 divisors (see below), whose sum is σ = 172600560. Its totient is φ = 26127360.

The previous prime is 68621159. The next prime is 68621173. The reversal of 68621168 is 86112686.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 629498 + ... + 629606.

It is an arithmetic number, because the mean of its divisors is an integer number (1438338).

Almost surely, 2^68621168 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 68621168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86300280).

68621168 is an abundant number, since it is smaller than the sum of its proper divisors (103979392).

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

68621168 is a wasteful number, since it uses less digits than its factorization.

68621168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215 (or 202 counting only the distinct ones).

The product of its digits is 27648, while the sum is 38.

The square root of 68621168 is about 8283.7894710090. The cubic root of 68621168 is about 409.4045848751.

The spelling of 68621168 in words is "sixty-eight million, six hundred twenty-one thousand, one hundred sixty-eight".