13564006441 has 4 divisors (see below), whose sum is σ = 13577292484. Its totient is φ = 13550720400.

The previous prime is 13564006439. The next prime is 13564006481. The reversal of 13564006441 is 14460046531.

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 7563954841 + 6000051600 = 86971^2 + 77460^2 .

It is a cyclic number.

It is not a de Polignac number, because 13564006441 - 2¹ = 13564006439 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13564006397 and 13564006406.

It is not an unprimeable number, because it can be changed into a prime (13564006481) 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, 6641490 + ... + 6643531.

It is an arithmetic number, because the mean of its divisors is an integer number (3394323121).

Almost surely, 2^13564006441 is an apocalyptic number.

It is an amenable number.

13564006441 is a deficient number, since it is larger than the sum of its proper divisors (13286043).

13564006441 is a wasteful number, since it uses less digits than its factorization.

13564006441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13286042.

The product of its (nonzero) digits is 34560, while the sum is 34.

The spelling of 13564006441 in words is "thirteen billion, five hundred sixty-four million, six thousand, four hundred forty-one".