660464066 has 8 divisors (see below), whose sum is σ = 990834240. Its totient is φ = 330185988.

The previous prime is 660464041. The next prime is 660464087.

660464066 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 806 + ... + 36353.

It is an arithmetic number, because the mean of its divisors is an integer number (123854280).

Almost surely, 2^660464066 is an apocalyptic number.

660464066 is a deficient number, since it is larger than the sum of its proper divisors (330370174).

660464066 is a wasteful number, since it uses less digits than its factorization.

660464066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46048.

The product of its (nonzero) digits is 124416, while the sum is 38.

The square root of 660464066 is about 25699.4954425179. The cubic root of 660464066 is about 870.8627834967.

The spelling of 660464066 in words is "six hundred sixty million, four hundred sixty-four thousand, sixty-six".