12516263663 has 4 divisors (see below), whose sum is σ = 12631091880. Its totient is φ = 12401435448.

The previous prime is 12516263633. The next prime is 12516263741. The reversal of 12516263663 is 36636261521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12516263663 - 2⁸ = 12516263407 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12516263663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12516263633) 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, 57413945 + ... + 57414162.

It is an arithmetic number, because the mean of its divisors is an integer number (3157772970).

Almost surely, 2^12516263663 is an apocalyptic number.

12516263663 is a deficient number, since it is larger than the sum of its proper divisors (114828217).

12516263663 is a wasteful number, since it uses less digits than its factorization.

12516263663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114828216.

The product of its digits is 233280, while the sum is 41.

The spelling of 12516263663 in words is "twelve billion, five hundred sixteen million, two hundred sixty-three thousand, six hundred sixty-three".