13663415626556 has 12 divisors (see below), whose sum is σ = 23911179167568. Its totient is φ = 6831650150112.

The previous prime is 13663415626501. The next prime is 13663415626571. The reversal of 13663415626556 is 65562651436631.

It is a super-2 number, since 2×13663415626556² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13663415626495 and 13663415626504.

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, 13880441 + ... + 14832176.

It is an arithmetic number, because the mean of its divisors is an integer number (1992598263964).

Almost surely, 2^{13663415626556} is an apocalyptic number.

It is an amenable number.

13663415626556 is a deficient number, since it is larger than the sum of its proper divisors (10247763541012).

13663415626556 is a wasteful number, since it uses less digits than its factorization.

13663415626556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28831588 (or 28831586 counting only the distinct ones).

The product of its digits is 69984000, while the sum is 59.

The spelling of 13663415626556 in words is "thirteen trillion, six hundred sixty-three billion, four hundred fifteen million, six hundred twenty-six thousand, five hundred fifty-six".