14221665642 has 32 divisors (see below), whose sum is σ = 30505273920. Its totient is φ = 4406313600.

The previous prime is 14221665637. The next prime is 14221665659. The reversal of 14221665642 is 24656612241.

It is a self number, because there is not a number n which added to its sum of digits gives 14221665642.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1170859 + ... + 1182942.

It is an arithmetic number, because the mean of its divisors is an integer number (953289810).

Almost surely, 2^14221665642 is an apocalyptic number.

14221665642 is an abundant number, since it is smaller than the sum of its proper divisors (16283608278).

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

14221665642 is a wasteful number, since it uses less digits than its factorization.

14221665642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2353878.

The product of its digits is 138240, while the sum is 39.

The spelling of 14221665642 in words is "fourteen billion, two hundred twenty-one million, six hundred sixty-five thousand, six hundred forty-two".