666907048 has 16 divisors (see below), whose sum is σ = 1251300960. Its totient is φ = 333226800.

The previous prime is 666907037. The next prime is 666907051. The reversal of 666907048 is 840709666.

It is a junction number, because it is equal to n+sod(n) for n = 666906989 and 666907007.

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, 15498 + ... + 39673.

It is an arithmetic number, because the mean of its divisors is an integer number (78206310).

Almost surely, 2^666907048 is an apocalyptic number.

It is an amenable number.

666907048 is a deficient number, since it is larger than the sum of its proper divisors (584393912).

666907048 is a wasteful number, since it uses less digits than its factorization.

666907048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56688 (or 56684 counting only the distinct ones).

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

The square root of 666907048 is about 25824.5435196830. The cubic root of 666907048 is about 873.6854483377.

The spelling of 666907048 in words is "six hundred sixty-six million, nine hundred seven thousand, forty-eight".