680448168 has 128 divisors (see below), whose sum is σ = 1967433600. Its totient is φ = 217728000.

The previous prime is 680448161. The next prime is 680448217. The reversal of 680448168 is 861844086.

It is not an unprimeable number, because it can be changed into a prime (680448161) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 565968 + ... + 567168.

It is an arithmetic number, because the mean of its divisors is an integer number (15370575).

Almost surely, 2^680448168 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 680448168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (983716800).

680448168 is an abundant number, since it is smaller than the sum of its proper divisors (1286985432).

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

680448168 is a wasteful number, since it uses less digits than its factorization.

680448168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1320 (or 1310 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 45.

The square root of 680448168 is about 26085.4014345189. The cubic root of 680448168 is about 879.5590800802.

The spelling of 680448168 in words is "six hundred eighty million, four hundred forty-eight thousand, one hundred sixty-eight".