14445112456561 has 4 divisors (see below), whose sum is σ = 14781045304432. Its totient is φ = 14109179608692.

The previous prime is 14445112456529. The next prime is 14445112456573. The reversal of 14445112456561 is 16565421154441.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 14445112456561 - 2⁵ = 14445112456529 is a prime.

It is a super-2 number, since 2×14445112456561² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14445112453561) 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, 167966423871 + ... + 167966423956.

It is an arithmetic number, because the mean of its divisors is an integer number (3695261326108).

Almost surely, 2^{14445112456561} is an apocalyptic number.

It is an amenable number.

14445112456561 is a deficient number, since it is larger than the sum of its proper divisors (335932847871).

14445112456561 is an equidigital number, since it uses as much as digits as its factorization.

14445112456561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335932847870.

The product of its digits is 2304000, while the sum is 49.

The spelling of 14445112456561 in words is "fourteen trillion, four hundred forty-five billion, one hundred twelve million, four hundred fifty-six thousand, five hundred sixty-one".