13518066561804 has 72 divisors (see below), whose sum is σ = 40311940451328. Its totient is φ = 3737714254560.

The previous prime is 13518066561787. The next prime is 13518066561809. The reversal of 13518066561804 is 40816566081531.

13518066561804 is a `hidden beast` number, since 1 + 3 + 5 + 18 + 0 + 6 + 6 + 5 + 618 + 0 + 4 = 666.

It is not an unprimeable number, because it can be changed into a prime (13518066561809) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 865203822 + ... + 865219445.

It is an arithmetic number, because the mean of its divisors is an integer number (559888061824).

Almost surely, 2^{13518066561804} is an apocalyptic number.

13518066561804 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13518066561804 is an abundant number, since it is smaller than the sum of its proper divisors (26793873889524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13518066561804 is a wasteful number, since it uses less digits than its factorization.

13518066561804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1730423315 (or 1730423310 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 54.

The spelling of 13518066561804 in words is "thirteen trillion, five hundred eighteen billion, sixty-six million, five hundred sixty-one thousand, eight hundred four".