13134435656 has 16 divisors (see below), whose sum is σ = 25199790000. Its totient is φ = 6414491664.

The previous prime is 13134435599. The next prime is 13134435659. The reversal of 13134435656 is 65653443131.

It is not an unprimeable number, because it can be changed into a prime (13134435659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19090406 + ... + 19091093.

It is an arithmetic number, because the mean of its divisors is an integer number (1574986875).

Almost surely, 2^13134435656 is an apocalyptic number.

It is an amenable number.

13134435656 is a deficient number, since it is larger than the sum of its proper divisors (12065354344).

13134435656 is a wasteful number, since it uses less digits than its factorization.

13134435656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38181548 (or 38181544 counting only the distinct ones).

The product of its digits is 388800, while the sum is 41.

Adding to 13134435656 its reverse (65653443131), we get a palindrome (78787878787).

The spelling of 13134435656 in words is "thirteen billion, one hundred thirty-four million, four hundred thirty-five thousand, six hundred fifty-six".