660330063 has 40 divisors (see below), whose sum is σ = 1012770000. Its totient is φ = 428613120.

The previous prime is 660330037. The next prime is 660330067. The reversal of 660330063 is 360033066.

It is not a de Polignac number, because 660330063 - 2¹⁷ = 660198991 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660330067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 528063 + ... + 529311.

It is an arithmetic number, because the mean of its divisors is an integer number (25319250).

Almost surely, 2^660330063 is an apocalyptic number.

660330063 is a deficient number, since it is larger than the sum of its proper divisors (352439937).

660330063 is a wasteful number, since it uses less digits than its factorization.

660330063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1429 (or 1420 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 27.

The square root of 660330063 is about 25696.8881968226. Note that the first 3 decimals coincide. The cubic root of 660330063 is about 870.8038824275.

The spelling of 660330063 in words is "six hundred sixty million, three hundred thirty thousand, sixty-three".