14221666446 has 64 divisors (see below), whose sum is σ = 31472582400. Its totient is φ = 4257248256.

The previous prime is 14221666427. The next prime is 14221666519. The reversal of 14221666446 is 64466612241.

It is a junction number, because it is equal to n+sod(n) for n = 14221666398 and 14221666407.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 430465 + ... + 462323.

It is an arithmetic number, because the mean of its divisors is an integer number (491759100).

Almost surely, 2^14221666446 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 14221666446, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15736291200).

14221666446 is an abundant number, since it is smaller than the sum of its proper divisors (17250915954).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

14221666446 is a wasteful number, since it uses less digits than its factorization.

14221666446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32033.

The product of its digits is 331776, while the sum is 42.

The spelling of 14221666446 in words is "fourteen billion, two hundred twenty-one million, six hundred sixty-six thousand, four hundred forty-six".