660211213113 has 24 divisors (see below), whose sum is σ = 958584536000. Its totient is φ = 437858698464.

The previous prime is 660211213093. The next prime is 660211213169. The reversal of 660211213113 is 311312112066.

It is a happy number.

660211213113 is a `hidden beast` number, since 6 + 602 + 1 + 1 + 21 + 31 + 1 + 3 = 666.

It is not a de Polignac number, because 660211213113 - 2¹² = 660211209017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (660211253113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12634506 + ... + 12686652.

Almost surely, 2^660211213113 is an apocalyptic number.

It is an amenable number.

660211213113 is a deficient number, since it is larger than the sum of its proper divisors (298373322887).

660211213113 is a wasteful number, since it uses less digits than its factorization.

660211213113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59421 (or 59418 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

Adding to 660211213113 its reverse (311312112066), we get a palindrome (971523325179).

The spelling of 660211213113 in words is "six hundred sixty billion, two hundred eleven million, two hundred thirteen thousand, one hundred thirteen".