14401564561 has 4 divisors (see below), whose sum is σ = 14466145792. Its totient is φ = 14336983332.

The previous prime is 14401564559. The next prime is 14401564579. The reversal of 14401564561 is 16546510441.

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 an emirpimes, since its reverse is a distinct semiprime: 16546510441 = 503 ⋅32895647.

It is a cyclic number.

It is not a de Polignac number, because 14401564561 - 2¹ = 14401564559 is a prime.

It is a super-2 number, since 2×14401564561² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14401564561.

It is not an unprimeable number, because it can be changed into a prime (14401564531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32290281 + ... + 32290726.

It is an arithmetic number, because the mean of its divisors is an integer number (3616536448).

Almost surely, 2^14401564561 is an apocalyptic number.

It is an amenable number.

14401564561 is a deficient number, since it is larger than the sum of its proper divisors (64581231).

14401564561 is an equidigital number, since it uses as much as digits as its factorization.

14401564561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64581230.

The product of its (nonzero) digits is 57600, while the sum is 37.

The spelling of 14401564561 in words is "fourteen billion, four hundred one million, five hundred sixty-four thousand, five hundred sixty-one".