668055360 has 224 divisors, whose sum is σ = 2453518080. Its totient is φ = 150847488.

The previous prime is 668055343. The next prime is 668055361. The reversal of 668055360 is 63550866.

668055360 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (224).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (668055361) 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, 597522 + ... + 598638.

Almost surely, 2^668055360 is an apocalyptic number.

668055360 is a gapful number since it is divisible by the number (60) 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 668055360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1226759040).

668055360 is an abundant number, since it is smaller than the sum of its proper divisors (1785462720).

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

668055360 is a wasteful number, since it uses less digits than its factorization.

668055360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1233 (or 1223 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 39.

The square root of 668055360 is about 25846.7669158059. The cubic root of 668055360 is about 874.1866117385.

The spelling of 668055360 in words is "six hundred sixty-eight million, fifty-five thousand, three hundred sixty".