13655411516321 has 16 divisors (see below), whose sum is σ = 14083033593600. Its totient is φ = 13235440848000.

The previous prime is 13655411516317. The next prime is 13655411516323. The reversal of 13655411516321 is 12361511455631.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 13655411516321 - 2² = 13655411516317 is a prime.

It is a super-3 number, since 3×13655411516321³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13655411516323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3369860 + ... + 6218261.

It is an arithmetic number, because the mean of its divisors is an integer number (880189599600).

Almost surely, 2^{13655411516321} is an apocalyptic number.

It is an amenable number.

13655411516321 is a deficient number, since it is larger than the sum of its proper divisors (427622077279).

13655411516321 is a wasteful number, since it uses less digits than its factorization.

13655411516321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9588520.

The product of its digits is 324000, while the sum is 44.

The spelling of 13655411516321 in words is "thirteen trillion, six hundred fifty-five billion, four hundred eleven million, five hundred sixteen thousand, three hundred twenty-one".