12368002640 has 80 divisors (see below), whose sum is σ = 33259621248. Its totient is φ = 4189352448.

The previous prime is 12368002627. The next prime is 12368002643. The reversal of 12368002640 is 4620086321.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 12368002597 and 12368002606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12368002643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86567 + ... + 179526.

Almost surely, 2^12368002640 is an apocalyptic number.

12368002640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12368002640 is an abundant number, since it is smaller than the sum of its proper divisors (20891618608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12368002640 is a wasteful number, since it uses less digits than its factorization.

12368002640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266196 (or 266190 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

Adding to 12368002640 its reverse (4620086321), we get a palindrome (16988088961).

The spelling of 12368002640 in words is "twelve billion, three hundred sixty-eight million, two thousand, six hundred forty".