14221443457556 has 12 divisors (see below), whose sum is σ = 24887800768992. Its totient is φ = 7110643237848.

The previous prime is 14221443457553. The next prime is 14221443457583. The reversal of 14221443457556 is 65575434412241.

It is a junction number, because it is equal to n+sod(n) for n = 14221443457498 and 14221443457507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14221443457553) 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, 19214120 + ... + 19940543.

It is an arithmetic number, because the mean of its divisors is an integer number (2073983397416).

Almost surely, 2^{14221443457556} is an apocalyptic number.

It is an amenable number.

14221443457556 is a deficient number, since it is larger than the sum of its proper divisors (10666357311436).

14221443457556 is a wasteful number, since it uses less digits than its factorization.

14221443457556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39245470 (or 39245468 counting only the distinct ones).

The product of its digits is 16128000, while the sum is 53.

Adding to 14221443457556 its reverse (65575434412241), we get a palindrome (79796877869797).

The spelling of 14221443457556 in words is "fourteen trillion, two hundred twenty-one billion, four hundred forty-three million, four hundred fifty-seven thousand, five hundred fifty-six".