135561386236 has 6 divisors (see below), whose sum is σ = 237232425920. Its totient is φ = 67780693116.

The previous prime is 135561386209. The next prime is 135561386237. The reversal of 135561386236 is 632683165531.

It is a self number, because there is not a number n which added to its sum of digits gives 135561386236.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135561386237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16945173276 + ... + 16945173283.

Almost surely, 2^135561386236 is an apocalyptic number.

It is an amenable number.

135561386236 is a deficient number, since it is larger than the sum of its proper divisors (101671039684).

135561386236 is a wasteful number, since it uses less digits than its factorization.

135561386236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33890346563 (or 33890346561 counting only the distinct ones).

The product of its digits is 2332800, while the sum is 49.

The spelling of 135561386236 in words is "one hundred thirty-five billion, five hundred sixty-one million, three hundred eighty-six thousand, two hundred thirty-six".