13566009137 has 4 divisors (see below), whose sum is σ = 13589520996. Its totient is φ = 13542497280.

The previous prime is 13566009133. The next prime is 13566009167. The reversal of 13566009137 is 73190066531.

13566009137 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 73190066531 = 2113 ⋅34637987.

It can be written as a sum of positive squares in 2 ways, for example, as 9402017296 + 4163991841 = 96964^2 + 64529^2 .

It is a cyclic number.

It is not a de Polignac number, because 13566009137 - 2² = 13566009133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13566009094 and 13566009103.

It is not an unprimeable number, because it can be changed into a prime (13566009131) 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, 11755064 + ... + 11756217.

It is an arithmetic number, because the mean of its divisors is an integer number (3397380249).

Almost surely, 2^13566009137 is an apocalyptic number.

It is an amenable number.

13566009137 is a deficient number, since it is larger than the sum of its proper divisors (23511859).

13566009137 is an equidigital number, since it uses as much as digits as its factorization.

13566009137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23511858.

The product of its (nonzero) digits is 102060, while the sum is 41.

The spelling of 13566009137 in words is "thirteen billion, five hundred sixty-six million, nine thousand, one hundred thirty-seven".