14221665620 has 24 divisors (see below), whose sum is σ = 30371695200. Its totient is φ = 5592247712.

The previous prime is 14221665611. The next prime is 14221665629. The reversal of 14221665620 is 2656612241.

It is an interprime number because it is at equal distance from previous prime (14221665611) and next prime (14221665629).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14221665629) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 6024950 + ... + 6027309.

It is an arithmetic number, because the mean of its divisors is an integer number (1265487300).

Almost surely, 2^14221665620 is an apocalyptic number.

14221665620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14221665620 is an abundant number, since it is smaller than the sum of its proper divisors (16150029580).

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

14221665620 is a wasteful number, since it uses less digits than its factorization.

14221665620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12052327 (or 12052325 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The spelling of 14221665620 in words is "fourteen billion, two hundred twenty-one million, six hundred sixty-five thousand, six hundred twenty".