13136786066 has 8 divisors (see below), whose sum is σ = 19706665404. Its totient is φ = 6567897600.

The previous prime is 13136786059. The next prime is 13136786071. The reversal of 13136786066 is 66068763131.

It can be written as a sum of positive squares in 2 ways, for example, as 13126514041 + 10272025 = 114571^2 + 3205^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 13136786066.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213635 + ... + 268166.

Almost surely, 2^13136786066 is an apocalyptic number.

13136786066 is a deficient number, since it is larger than the sum of its proper divisors (6569879338).

13136786066 is a wasteful number, since it uses less digits than its factorization.

13136786066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495436.

The product of its (nonzero) digits is 653184, while the sum is 47.

The spelling of 13136786066 in words is "thirteen billion, one hundred thirty-six million, seven hundred eighty-six thousand, sixty-six".