14195551518721 has 8 divisors (see below), whose sum is σ = 14942756676320. Its totient is φ = 13448353447872.

The previous prime is 14195551518679. The next prime is 14195551518751. The reversal of 14195551518721 is 12781515559141.

It is a happy number.

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 14195551518721 - 2²¹ = 14195549421569 is a prime.

It is a super-2 number, since 2×14195551518721² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14195551518751) 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, 2619001 + ... + 5937193.

It is an arithmetic number, because the mean of its divisors is an integer number (1867844584540).

Almost surely, 2^{14195551518721} is an apocalyptic number.

It is an amenable number.

14195551518721 is a deficient number, since it is larger than the sum of its proper divisors (747205157599).

14195551518721 is a wasteful number, since it uses less digits than its factorization.

14195551518721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3543375.

The product of its digits is 2520000, while the sum is 55.

The spelling of 14195551518721 in words is "fourteen trillion, one hundred ninety-five billion, five hundred fifty-one million, five hundred eighteen thousand, seven hundred twenty-one".