660303066 has 16 divisors (see below), whose sum is σ = 1320865344. Its totient is φ = 220057824.

The previous prime is 660303037. The next prime is 660303079.

660303066 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42715 + ... + 56081.

It is an arithmetic number, because the mean of its divisors is an integer number (82554084).

Almost surely, 2^660303066 is an apocalyptic number.

660303066 is an abundant number, since it is smaller than the sum of its proper divisors (660562278).

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

660303066 is a wasteful number, since it uses less digits than its factorization.

660303066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21605.

The product of its (nonzero) digits is 11664, while the sum is 30.

The square root of 660303066 is about 25696.3628943864. The cubic root of 660303066 is about 870.7920149216.

It can be divided in two parts, 66030 and 3066, that added together give a palindrome (69096).

The spelling of 660303066 in words is "six hundred sixty million, three hundred three thousand, sixty-six".