13355208866817 has 12 divisors (see below), whose sum is σ = 20129590176384. Its totient is φ = 8516365074360.

The previous prime is 13355208866773. The next prime is 13355208866819. The reversal of 13355208866817 is 71866880255331.

13355208866817 is a `hidden beast` number, since 1 + 3 + 3 + 552 + 0 + 8 + 8 + 6 + 68 + 17 = 666.

It is not a de Polignac number, because 13355208866817 - 2¹⁵ = 13355208834049 is a prime.

It is a super-2 number, since 2×13355208866817² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13355208866819) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32258958409 + ... + 32258958822.

It is an arithmetic number, because the mean of its divisors is an integer number (1677465848032).

Almost surely, 2^{13355208866817} is an apocalyptic number.

It is an amenable number.

13355208866817 is a deficient number, since it is larger than the sum of its proper divisors (6774381309567).

13355208866817 is a wasteful number, since it uses less digits than its factorization.

13355208866817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64517917260 (or 64517917257 counting only the distinct ones).

The product of its (nonzero) digits is 58060800, while the sum is 63.

The spelling of 13355208866817 in words is "thirteen trillion, three hundred fifty-five billion, two hundred eight million, eight hundred sixty-six thousand, eight hundred seventeen".