23663504012 has 12 divisors (see below), whose sum is σ = 41412322560. Its totient is φ = 11831411856.

The previous prime is 23663503979. The next prime is 23663504017. The reversal of 23663504012 is 21040536632.

It is a super-2 number, since 2×23663504012² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23663504012.

It is not an unprimeable number, because it can be changed into a prime (23663504017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134414 + ... + 255722.

It is an arithmetic number, because the mean of its divisors is an integer number (3451026880).

Almost surely, 2^23663504012 is an apocalyptic number.

It is an amenable number.

23663504012 is a deficient number, since it is larger than the sum of its proper divisors (17748818548).

23663504012 is a wasteful number, since it uses less digits than its factorization.

23663504012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170080 (or 170078 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 32.

The spelling of 23663504012 in words is "twenty-three billion, six hundred sixty-three million, five hundred four thousand, twelve".