12640362316 has 12 divisors (see below), whose sum is σ = 22136455600. Its totient is φ = 6315660720.

The previous prime is 12640362307. The next prime is 12640362323. The reversal of 12640362316 is 61326304621.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1123815 + ... + 1135006.

Almost surely, 2^12640362316 is an apocalyptic number.

It is an amenable number.

12640362316 is a deficient number, since it is larger than the sum of its proper divisors (9496093284).

12640362316 is a wasteful number, since it uses less digits than its factorization.

12640362316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2260224 (or 2260222 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 34.

Adding to 12640362316 its reverse (61326304621), we get a palindrome (73966666937).

The spelling of 12640362316 in words is "twelve billion, six hundred forty million, three hundred sixty-two thousand, three hundred sixteen".