12310663640 has 32 divisors (see below), whose sum is σ = 30217084560. Its totient is φ = 4476604800.

The previous prime is 12310663639. The next prime is 12310663663. The reversal of 12310663640 is 4636601321.

It is a super-3 number, since 3×12310663640³ (a number of 31 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12310663597 and 12310663606.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 13988951 + ... + 13989830.

Almost surely, 2^12310663640 is an apocalyptic number.

12310663640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12310663640 is an abundant number, since it is smaller than the sum of its proper divisors (17906420920).

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

12310663640 is a wasteful number, since it uses less digits than its factorization.

12310663640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27978803 (or 27978799 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 32.

The spelling of 12310663640 in words is "twelve billion, three hundred ten million, six hundred sixty-three thousand, six hundred forty".