14561066424521 has 4 divisors (see below), whose sum is σ = 14561074114944. Its totient is φ = 14561058734100.

The previous prime is 14561066424469. The next prime is 14561066424631. The reversal of 14561066424521 is 12542466016541.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 14561066424521 - 2²⁶ = 14560999315657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14561066424221) 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, 1211756 + ... + 5530866.

It is an arithmetic number, because the mean of its divisors is an integer number (3640268528736).

Almost surely, 2^{14561066424521} is an apocalyptic number.

It is an amenable number.

14561066424521 is a deficient number, since it is larger than the sum of its proper divisors (7690423).

14561066424521 is an equidigital number, since it uses as much as digits as its factorization.

14561066424521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7690422.

The product of its (nonzero) digits is 1382400, while the sum is 47.

The spelling of 14561066424521 in words is "fourteen trillion, five hundred sixty-one billion, sixty-six million, four hundred twenty-four thousand, five hundred twenty-one".