13665054205544 has 48 divisors (see below), whose sum is σ = 29915138854080. Its totient is φ = 5834841233760.

The previous prime is 13665054205529. The next prime is 13665054205577. The reversal of 13665054205544 is 44550245056631.

13665054205544 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×13665054205544² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13665054205492 and 13665054205501.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64210802 + ... + 64423265.

It is an arithmetic number, because the mean of its divisors is an integer number (623232059460).

Almost surely, 2^{13665054205544} is an apocalyptic number.

13665054205544 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13665054205544 is an abundant number, since it is smaller than the sum of its proper divisors (16250084648536).

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

13665054205544 is a wasteful number, since it uses less digits than its factorization.

13665054205544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128634358 (or 128634347 counting only the distinct ones).

The product of its (nonzero) digits is 8640000, while the sum is 50.

The spelling of 13665054205544 in words is "thirteen trillion, six hundred sixty-five billion, fifty-four million, two hundred five thousand, five hundred forty-four".