13670561220 has 72 divisors (see below), whose sum is σ = 40661693184. Its totient is φ = 3431038464.

The previous prime is 13670561207. The next prime is 13670561251. The reversal of 13670561220 is 2216507631.

13670561220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 376852 + ... + 411531.

Almost surely, 2^13670561220 is an apocalyptic number.

13670561220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13670561220 is an abundant number, since it is smaller than the sum of its proper divisors (26991131964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13670561220 is a wasteful number, since it uses less digits than its factorization.

13670561220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 788429 (or 788410 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The spelling of 13670561220 in words is "thirteen billion, six hundred seventy million, five hundred sixty-one thousand, two hundred twenty".