13605055556 has 24 divisors (see below), whose sum is σ = 24105695040. Its totient is φ = 6717782432.

The previous prime is 13605055537. The next prime is 13605055559. The reversal of 13605055556 is 65555050631.

It is not an unprimeable number, because it can be changed into a prime (13605055559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 958745 + ... + 972831.

It is an arithmetic number, because the mean of its divisors is an integer number (1004403960).

Almost surely, 2^13605055556 is an apocalyptic number.

It is an amenable number.

13605055556 is a deficient number, since it is larger than the sum of its proper divisors (10500639484).

13605055556 is a wasteful number, since it uses less digits than its factorization.

13605055556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17083 (or 17081 counting only the distinct ones).

The product of its (nonzero) digits is 337500, while the sum is 41.

The spelling of 13605055556 in words is "thirteen billion, six hundred five million, fifty-five thousand, five hundred fifty-six".