13316556256663 has 8 divisors (see below), whose sum is σ = 14534794150416. Its totient is φ = 12099592008000.

The previous prime is 13316556256643. The next prime is 13316556256687. The reversal of 13316556256663 is 36665265561331.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13316556256663 is a prime.

It is a super-2 number, since 2×13316556256663² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13316556256598 and 13316556256607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13316556256603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 318389406 + ... + 318431227.

It is an arithmetic number, because the mean of its divisors is an integer number (1816849268802).

Almost surely, 2^{13316556256663} is an apocalyptic number.

13316556256663 is a deficient number, since it is larger than the sum of its proper divisors (1218237893753).

13316556256663 is a wasteful number, since it uses less digits than its factorization.

13316556256663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636822545.

The product of its digits is 52488000, while the sum is 58.

The spelling of 13316556256663 in words is "thirteen trillion, three hundred sixteen billion, five hundred fifty-six million, two hundred fifty-six thousand, six hundred sixty-three".