668560160 has 24 divisors (see below), whose sum is σ = 1579473756. Its totient is φ = 267424000.

The previous prime is 668560129. The next prime is 668560177. The reversal of 668560160 is 61065866.

668560160 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 668325904 + 234256 = 25852^2 + 484^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2089091 + ... + 2089410.

Almost surely, 2^668560160 is an apocalyptic number.

It is an amenable number.

668560160 is an abundant number, since it is smaller than the sum of its proper divisors (910913596).

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

668560160 is a wasteful number, since it uses less digits than its factorization.

668560160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4178516 (or 4178508 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 668560160 is about 25856.5303163437. The cubic root of 668560160 is about 874.4067423468.

The spelling of 668560160 in words is "six hundred sixty-eight million, five hundred sixty thousand, one hundred sixty".