12504660563 has 16 divisors (see below), whose sum is σ = 13046533920. Its totient is φ = 11974634496.

The previous prime is 12504660559. The next prime is 12504660599. The reversal of 12504660563 is 36506640521.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12504660563 - 2² = 12504660559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12504660163) 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, 818531 + ... + 833667.

It is an arithmetic number, because the mean of its divisors is an integer number (815408370).

Almost surely, 2^12504660563 is an apocalyptic number.

12504660563 is a deficient number, since it is larger than the sum of its proper divisors (541873357).

12504660563 is a wasteful number, since it uses less digits than its factorization.

12504660563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15526.

The product of its (nonzero) digits is 129600, while the sum is 38.

The spelling of 12504660563 in words is "twelve billion, five hundred four million, six hundred sixty thousand, five hundred sixty-three".