13564353443448 has 32 divisors (see below), whose sum is σ = 33923309893200. Its totient is φ = 4519794309888.

The previous prime is 13564353443327. The next prime is 13564353443453. The reversal of 13564353443448 is 84434435346531.

It is a super-2 number, since 2×13564353443448² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103485511 + ... + 103616502.

Almost surely, 2^{13564353443448} is an apocalyptic number.

It is an amenable number.

13564353443448 is an abundant number, since it is smaller than the sum of its proper divisors (20358956449752).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13564353443448 is a wasteful number, since it uses less digits than its factorization.

13564353443448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207104751 (or 207104747 counting only the distinct ones).

The product of its digits is 99532800, while the sum is 57.

Adding to 13564353443448 its reverse (84434435346531), we get a palindrome (97998788789979).

The spelling of 13564353443448 in words is "thirteen trillion, five hundred sixty-four billion, three hundred fifty-three million, four hundred forty-three thousand, four hundred forty-eight".