660710203 has 4 divisors (see below), whose sum is σ = 676825128. Its totient is φ = 644595280.

The previous prime is 660710191. The next prime is 660710207. The reversal of 660710203 is 302017066.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-660710203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (660710207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8057401 + ... + 8057482.

It is an arithmetic number, because the mean of its divisors is an integer number (169206282).

Almost surely, 2^660710203 is an apocalyptic number.

660710203 is a deficient number, since it is larger than the sum of its proper divisors (16114925).

660710203 is a wasteful number, since it uses less digits than its factorization.

660710203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16114924.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 660710203 is about 25704.2837480448. The cubic root of 660710203 is about 870.9709523544.

Adding to 660710203 its reverse (302017066), we get a palindrome (962727269).

The spelling of 660710203 in words is "six hundred sixty million, seven hundred ten thousand, two hundred three".