660467968 has 36 divisors (see below), whose sum is σ = 1387753360. Its totient is φ = 312850944.

The previous prime is 660467963. The next prime is 660467993. The reversal of 660467968 is 869764066.

It is not an unprimeable number, because it can be changed into a prime (660467963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63030 + ... + 72757.

Almost surely, 2^660467968 is an apocalyptic number.

It is an amenable number.

660467968 is an abundant number, since it is smaller than the sum of its proper divisors (727285392).

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

660467968 is a wasteful number, since it uses less digits than its factorization.

660467968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135822 (or 135808 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 52.

The square root of 660467968 is about 25699.5713582931. The cubic root of 660467968 is about 870.8644985028.

The spelling of 660467968 in words is "six hundred sixty million, four hundred sixty-seven thousand, nine hundred sixty-eight".