12663454526 has 8 divisors (see below), whose sum is σ = 18996715920. Its totient is φ = 6331215888.

The previous prime is 12663454511. The next prime is 12663454543. The reversal of 12663454526 is 62545436621.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 223946 + ... + 274733.

It is an arithmetic number, because the mean of its divisors is an integer number (2374589490).

Almost surely, 2^12663454526 is an apocalyptic number.

12663454526 is a deficient number, since it is larger than the sum of its proper divisors (6333261394).

12663454526 is a wasteful number, since it uses less digits than its factorization.

12663454526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511378.

The product of its digits is 1036800, while the sum is 44.

The spelling of 12663454526 in words is "twelve billion, six hundred sixty-three million, four hundred fifty-four thousand, five hundred twenty-six".