13005520356 has 12 divisors (see below), whose sum is σ = 30346214192. Its totient is φ = 4335173448.

The previous prime is 13005520343. The next prime is 13005520357. The reversal of 13005520356 is 65302550031.

13005520356 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (13005520357) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 541896670 + ... + 541896693.

Almost surely, 2^13005520356 is an apocalyptic number.

It is an amenable number.

13005520356 is an abundant number, since it is smaller than the sum of its proper divisors (17340693836).

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

13005520356 is a wasteful number, since it uses less digits than its factorization.

13005520356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1083793370 (or 1083793368 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 30.

The spelling of 13005520356 in words is "thirteen billion, five million, five hundred twenty thousand, three hundred fifty-six".