13346405561 has 8 divisors (see below), whose sum is σ = 13708811424. Its totient is φ = 12988800000.

The previous prime is 13346405551. The next prime is 13346405573. The reversal of 13346405561 is 16550464331.

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 13346405561 - 2³⁰ = 12272663737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13346405551) 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 7 ways as a sum of consecutive naturals, for example, 1194440 + ... + 1205561.

It is an arithmetic number, because the mean of its divisors is an integer number (1713601428).

Almost surely, 2^13346405561 is an apocalyptic number.

It is an amenable number.

13346405561 is a deficient number, since it is larger than the sum of its proper divisors (362405863).

13346405561 is an equidigital number, since it uses as much as digits as its factorization.

13346405561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2400151.

The product of its (nonzero) digits is 129600, while the sum is 38.

Adding to 13346405561 its reverse (16550464331), we get a palindrome (29896869892).

The spelling of 13346405561 in words is "thirteen billion, three hundred forty-six million, four hundred five thousand, five hundred sixty-one".