14204145021521 has 8 divisors (see below), whose sum is σ = 17482024641984. Its totient is φ = 11238444412560.

The previous prime is 14204145021509. The next prime is 14204145021529. The reversal of 14204145021521 is 12512054140241.

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 14204145021521 - 2¹⁰ = 14204145020497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (14204145021529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78044752775 + ... + 78044752956.

It is an arithmetic number, because the mean of its divisors is an integer number (2185253080248).

Almost surely, 2^{14204145021521} is an apocalyptic number.

It is an amenable number.

14204145021521 is a deficient number, since it is larger than the sum of its proper divisors (3277879620463).

14204145021521 is a wasteful number, since it uses less digits than its factorization.

14204145021521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156089505751.

The product of its (nonzero) digits is 12800, while the sum is 32.

Adding to 14204145021521 its reverse (12512054140241), we get a palindrome (26716199161762).

The spelling of 14204145021521 in words is "fourteen trillion, two hundred four billion, one hundred forty-five million, twenty-one thousand, five hundred twenty-one".