13305006661 has 8 divisors (see below), whose sum is σ = 13402609920. Its totient is φ = 13207742592.

The previous prime is 13305006623. The next prime is 13305006713. The reversal of 13305006661 is 16660050331.

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 13305006661 - 2²⁷ = 13170788933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13305006461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5791 + ... + 163228.

It is an arithmetic number, because the mean of its divisors is an integer number (1675326240).

Almost surely, 2^13305006661 is an apocalyptic number.

It is an amenable number.

13305006661 is a deficient number, since it is larger than the sum of its proper divisors (97603259).

13305006661 is a wasteful number, since it uses less digits than its factorization.

13305006661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169595.

The product of its (nonzero) digits is 9720, while the sum is 31.

Adding to 13305006661 its reverse (16660050331), we get a palindrome (29965056992).

The spelling of 13305006661 in words is "thirteen billion, three hundred five million, six thousand, six hundred sixty-one".