13559205136 has 45 divisors (see below), whose sum is σ = 26935907781. Its totient is φ = 6612156096.

The previous prime is 13559205131. The next prime is 13559205139. The reversal of 13559205136 is 63150295531.

The square root of 13559205136 is 116444.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 13479210000 + 79995136 = 116100^2 + 8944^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13559205131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 20028030 + ... + 20028706.

Almost surely, 2^13559205136 is an apocalyptic number.

13559205136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

13559205136 is the 116444-th square number.

It is an amenable number.

13559205136 is a deficient number, since it is larger than the sum of its proper divisors (13376702645).

13559205136 is an frugal number, since it uses more digits than its factorization.

13559205136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1448 (or 722 counting only the distinct ones).

The product of its (nonzero) digits is 121500, while the sum is 40.

The spelling of 13559205136 in words is "thirteen billion, five hundred fifty-nine million, two hundred five thousand, one hundred thirty-six".