14221611566 has 8 divisors (see below), whose sum is σ = 21409430520. Its totient is φ = 7085134728.

The previous prime is 14221611563. The next prime is 14221611611. The reversal of 14221611566 is 66511612241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14221611563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12834836 + ... + 12835943.

It is an arithmetic number, because the mean of its divisors is an integer number (2676178815).

Almost surely, 2^14221611566 is an apocalyptic number.

14221611566 is a deficient number, since it is larger than the sum of its proper divisors (7187818954).

14221611566 is a wasteful number, since it uses less digits than its factorization.

14221611566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25671058.

The product of its digits is 17280, while the sum is 35.

The spelling of 14221611566 in words is "fourteen billion, two hundred twenty-one million, six hundred eleven thousand, five hundred sixty-six".