14554506220621 has 4 divisors (see below), whose sum is σ = 15056385745500. Its totient is φ = 14052626695744.

The previous prime is 14554506220619. The next prime is 14554506220669. The reversal of 14554506220621 is 12602260545541.

It is a happy number.

14554506220621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10264263956521 + 4290242264100 = 3203789^2 + 2071290^2 .

It is not a de Polignac number, because 14554506220621 - 2¹ = 14554506220619 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14554506220321) 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, 250939762396 + ... + 250939762453.

It is an arithmetic number, because the mean of its divisors is an integer number (3764096436375).

Almost surely, 2^{14554506220621} is an apocalyptic number.

It is an amenable number.

14554506220621 is a deficient number, since it is larger than the sum of its proper divisors (501879524879).

14554506220621 is an equidigital number, since it uses as much as digits as its factorization.

14554506220621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501879524878.

The product of its (nonzero) digits is 576000, while the sum is 43.

The spelling of 14554506220621 in words is "fourteen trillion, five hundred fifty-four billion, five hundred six million, two hundred twenty thousand, six hundred twenty-one".