13616631221203 has 16 divisors (see below), whose sum is σ = 14147882978976. Its totient is φ = 13098665606400.

The previous prime is 13616631221201. The next prime is 13616631221213. The reversal of 13616631221203 is 30212213661631.

It is a cyclic number.

It is not a de Polignac number, because 13616631221203 - 2¹ = 13616631221201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13616631221201) 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, 13288276 + ... + 14276257.

It is an arithmetic number, because the mean of its divisors is an integer number (884242686186).

Almost surely, 2^{13616631221203} is an apocalyptic number.

13616631221203 is a deficient number, since it is larger than the sum of its proper divisors (531251757773).

13616631221203 is a wasteful number, since it uses less digits than its factorization.

13616631221203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27564774.

The product of its (nonzero) digits is 46656, while the sum is 37.

Adding to 13616631221203 its reverse (30212213661631), we get a palindrome (43828844882834).

The spelling of 13616631221203 in words is "thirteen trillion, six hundred sixteen billion, six hundred thirty-one million, two hundred twenty-one thousand, two hundred three".