14066215200421 has 8 divisors (see below), whose sum is σ = 14075079805080. Its totient is φ = 14057351666688.

The previous prime is 14066215200391. The next prime is 14066215200437. The reversal of 14066215200421 is 12400251266041.

It can be written as a sum of positive squares in 4 ways, for example, as 3888271296900 + 10177943903521 = 1971870^2 + 3190289^2 .

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 14066215200421 - 2¹³ = 14066215192229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14066215200221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26873805 + ... + 27392221.

It is an arithmetic number, because the mean of its divisors is an integer number (1759384975635).

Almost surely, 2^{14066215200421} is an apocalyptic number.

It is an amenable number.

14066215200421 is a deficient number, since it is larger than the sum of its proper divisors (8864604659).

14066215200421 is a wasteful number, since it uses less digits than its factorization.

14066215200421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535463.

The product of its (nonzero) digits is 23040, while the sum is 34.

Adding to 14066215200421 its reverse (12400251266041), we get a palindrome (26466466466462).

The spelling of 14066215200421 in words is "fourteen trillion, sixty-six billion, two hundred fifteen million, two hundred thousand, four hundred twenty-one".