660260206 has 8 divisors (see below), whose sum is σ = 1001518560. Its totient is φ = 326420688.

The previous prime is 660260191. The next prime is 660260207. The reversal of 660260206 is 602062066.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660260207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1854486 + ... + 1854841.

It is an arithmetic number, because the mean of its divisors is an integer number (125189820).

Almost surely, 2^660260206 is an apocalyptic number.

660260206 is a deficient number, since it is larger than the sum of its proper divisors (341258354).

660260206 is a wasteful number, since it uses less digits than its factorization.

660260206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3709418.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 660260206 is about 25695.5289106879. The cubic root of 660260206 is about 870.7731735969.

The spelling of 660260206 in words is "six hundred sixty million, two hundred sixty thousand, two hundred six".