13220685335 has 32 divisors (see below), whose sum is σ = 18666063360. Its totient is φ = 8862249600.

The previous prime is 13220685323. The next prime is 13220685343. The reversal of 13220685335 is 53358602231.

It is not a de Polignac number, because 13220685335 - 2¹⁰ = 13220684311 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 480686 + ... + 507444.

It is an arithmetic number, because the mean of its divisors is an integer number (583314480).

Almost surely, 2^13220685335 is an apocalyptic number.

13220685335 is a deficient number, since it is larger than the sum of its proper divisors (5445378025).

13220685335 is a wasteful number, since it uses less digits than its factorization.

13220685335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27479.

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

The spelling of 13220685335 in words is "thirteen billion, two hundred twenty million, six hundred eighty-five thousand, three hundred thirty-five".