13556118673547 has 8 divisors (see below), whose sum is σ = 13633458354432. Its totient is φ = 13478845297600.

The previous prime is 13556118673543. The next prime is 13556118673571. The reversal of 13556118673547 is 74537681165531.

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

It is a cyclic number.

It is not a de Polignac number, because 13556118673547 - 2² = 13556118673543 is a prime.

It is a super-2 number, since 2×13556118673547² (a number of 27 digits) contains 22 as substring.

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 13556118673547.

It is not an unprimeable number, because it can be changed into a prime (13556118673543) 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, 16166138 + ... + 16983999.

It is an arithmetic number, because the mean of its divisors is an integer number (1704182294304).

Almost surely, 2^{13556118673547} is an apocalyptic number.

13556118673547 is a deficient number, since it is larger than the sum of its proper divisors (77339680885).

13556118673547 is a wasteful number, since it uses less digits than its factorization.

13556118673547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33152469.

The product of its digits is 63504000, while the sum is 62.

The spelling of 13556118673547 in words is "thirteen trillion, five hundred fifty-six billion, one hundred eighteen million, six hundred seventy-three thousand, five hundred forty-seven".