11536155636 has 12 divisors (see below), whose sum is σ = 26917696512. Its totient is φ = 3845385208.

The previous prime is 11536155607. The next prime is 11536155637. The reversal of 11536155636 is 63655163511.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11536155637) 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, 480673140 + ... + 480673163.

It is an arithmetic number, because the mean of its divisors is an integer number (2243141376).

Almost surely, 2^11536155636 is an apocalyptic number.

It is an amenable number.

11536155636 is an abundant number, since it is smaller than the sum of its proper divisors (15381540876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11536155636 is a wasteful number, since it uses less digits than its factorization.

11536155636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 961346310 (or 961346308 counting only the distinct ones).

The product of its digits is 243000, while the sum is 42.

The spelling of 11536155636 in words is "eleven billion, five hundred thirty-six million, one hundred fifty-five thousand, six hundred thirty-six".