668291360 has 96 divisors (see below), whose sum is σ = 1728324864. Its totient is φ = 242176000.

The previous prime is 668291359. The next prime is 668291383. The reversal of 668291360 is 63192866.

It is a super-2 number, since 2×668291360² = 893226683701299200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 758120 + ... + 759000.

It is an arithmetic number, because the mean of its divisors is an integer number (18003384).

Almost surely, 2^668291360 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 668291360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (864162432).

668291360 is an abundant number, since it is smaller than the sum of its proper divisors (1060033504).

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

668291360 is a wasteful number, since it uses less digits than its factorization.

668291360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1338 (or 1330 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 668291360 is about 25851.3318805821. The cubic root of 668291360 is about 874.2895392122.

The spelling of 668291360 in words is "six hundred sixty-eight million, two hundred ninety-one thousand, three hundred sixty".