13220563707 has 48 divisors (see below), whose sum is σ = 21417247488. Its totient is φ = 7803371520.

The previous prime is 13220563673. The next prime is 13220563711. The reversal of 13220563707 is 70736502231.

13220563707 is a `hidden beast` number, since 1 + 3 + 2 + 20 + 563 + 70 + 7 = 666.

It is not a de Polignac number, because 13220563707 - 2¹⁰ = 13220562683 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13220561707) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 393723 + ... + 425979.

It is an arithmetic number, because the mean of its divisors is an integer number (446192656).

Almost surely, 2^13220563707 is an apocalyptic number.

13220563707 is a deficient number, since it is larger than the sum of its proper divisors (8196683781).

13220563707 is a wasteful number, since it uses less digits than its factorization.

13220563707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32420 (or 32417 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 36.

The spelling of 13220563707 in words is "thirteen billion, two hundred twenty million, five hundred sixty-three thousand, seven hundred seven".