660230012 has 36 divisors (see below), whose sum is σ = 1313252136. Its totient is φ = 288675360.

The previous prime is 660229963. The next prime is 660230047. The reversal of 660230012 is 210032066.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1187 + ... + 36357.

It is an arithmetic number, because the mean of its divisors is an integer number (36479226).

Almost surely, 2^660230012 is an apocalyptic number.

It is an amenable number.

660230012 is a deficient number, since it is larger than the sum of its proper divisors (653022124).

660230012 is a wasteful number, since it uses less digits than its factorization.

660230012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35226 (or 35205 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 660230012 is about 25694.9413698494. The cubic root of 660230012 is about 870.7598997766.

Adding to 660230012 its reverse (210032066), we get a palindrome (870262078).

The spelling of 660230012 in words is "six hundred sixty million, two hundred thirty thousand, twelve".