13605438552 has 64 divisors (see below), whose sum is σ = 34757337600. Its totient is φ = 4436092800.

The previous prime is 13605438551. The next prime is 13605438569. The reversal of 13605438552 is 25583450631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13605438551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3674302 + ... + 3678002.

It is an arithmetic number, because the mean of its divisors is an integer number (543083400).

Almost surely, 2^13605438552 is an apocalyptic number.

13605438552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13605438552 is an abundant number, since it is smaller than the sum of its proper divisors (21151899048).

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

13605438552 is a wasteful number, since it uses less digits than its factorization.

13605438552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7016 (or 7012 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 42.

The spelling of 13605438552 in words is "thirteen billion, six hundred five million, four hundred thirty-eight thousand, five hundred fifty-two".