660749068 has 12 divisors (see below), whose sum is σ = 1321498192. Its totient is φ = 283178160.

The previous prime is 660749057. The next prime is 660749143. The reversal of 660749068 is 860947066.

660749068 is an admirable number.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

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, 11799063 + ... + 11799118.

Almost surely, 2^660749068 is an apocalyptic number.

It is an amenable number.

660749068 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

660749068 is a wasteful number, since it uses less digits than its factorization.

660749068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23598192 (or 23598190 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 46.

The square root of 660749068 is about 25705.0397393196. The cubic root of 660749068 is about 870.9880297469.

The spelling of 660749068 in words is "six hundred sixty million, seven hundred forty-nine thousand, sixty-eight".