660800968 has 16 divisors (see below), whose sum is σ = 1239315660. Its totient is φ = 330316800.

The previous prime is 660800963. The next prime is 660800993. The reversal of 660800968 is 869008066.

It can be written as a sum of positive squares in 2 ways, for example, as 645261604 + 15539364 = 25402^2 + 3942^2 .

It is not an unprimeable number, because it can be changed into a prime (660800963) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 34428 + ... + 50068.

Almost surely, 2^660800968 is an apocalyptic number.

It is an amenable number.

660800968 is a deficient number, since it is larger than the sum of its proper divisors (578514692).

660800968 is a wasteful number, since it uses less digits than its factorization.

660800968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20928 (or 20924 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 660800968 is about 25706.0492491553. The cubic root of 660800968 is about 871.0108337116.

The spelling of 660800968 in words is "six hundred sixty million, eight hundred thousand, nine hundred sixty-eight".