668848260 has 192 divisors, whose sum is σ = 2057690880. Its totient is φ = 161740800.

The previous prime is 668848259. The next prime is 668848331. The reversal of 668848260 is 62848866.

It is a happy number.

668848260 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4260102 + ... + 4260258.

It is an arithmetic number, because the mean of its divisors is an integer number (10717140).

Almost surely, 2^668848260 is an apocalyptic number.

668848260 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 668848260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1028845440).

668848260 is an abundant number, since it is smaller than the sum of its proper divisors (1388842620).

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

668848260 is a wasteful number, since it uses less digits than its factorization.

668848260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326 (or 324 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 48.

The square root of 668848260 is about 25862.1008427390. The cubic root of 668848260 is about 874.5323258622.

The spelling of 668848260 in words is "six hundred sixty-eight million, eight hundred forty-eight thousand, two hundred sixty".