13340225561 has 8 divisors (see below), whose sum is σ = 14991023040. Its totient is φ = 11778660432.

The previous prime is 13340225551. The next prime is 13340225593. The reversal of 13340225561 is 16552204331.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13340225561 - 2²² = 13336031257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13340225551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22307771 + ... + 22308368.

It is an arithmetic number, because the mean of its divisors is an integer number (1873877880).

Almost surely, 2^13340225561 is an apocalyptic number.

It is an amenable number.

13340225561 is a deficient number, since it is larger than the sum of its proper divisors (1650797479).

13340225561 is a wasteful number, since it uses less digits than its factorization.

13340225561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44616175.

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 13340225561 its reverse (16552204331), we get a palindrome (29892429892).

The spelling of 13340225561 in words is "thirteen billion, three hundred forty million, two hundred twenty-five thousand, five hundred sixty-one".