14221644654 has 96 divisors (see below), whose sum is σ = 33893212320. Its totient is φ = 3965165568.

The previous prime is 14221644643. The next prime is 14221644667. The reversal of 14221644654 is 45644612241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3004962 + ... + 3009690.

It is an arithmetic number, because the mean of its divisors is an integer number (353054295).

Almost surely, 2^14221644654 is an apocalyptic number.

14221644654 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 14221644654, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16946606160).

14221644654 is an abundant number, since it is smaller than the sum of its proper divisors (19671567666).

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

14221644654 is a wasteful number, since it uses less digits than its factorization.

14221644654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4994 (or 4987 counting only the distinct ones).

The product of its digits is 184320, while the sum is 39.

The spelling of 14221644654 in words is "fourteen billion, two hundred twenty-one million, six hundred forty-four thousand, six hundred fifty-four".