11915582136 has 16 divisors (see below), whose sum is σ = 29788955400. Its totient is φ = 3971860704.

The previous prime is 11915582131. The next prime is 11915582137. The reversal of 11915582136 is 63128551911.

11915582136 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11915582131) 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, 248241271 + ... + 248241318.

Almost surely, 2^11915582136 is an apocalyptic number.

It is an amenable number.

11915582136 is an abundant number, since it is smaller than the sum of its proper divisors (17873373264).

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

11915582136 is a wasteful number, since it uses less digits than its factorization.

11915582136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496482598 (or 496482594 counting only the distinct ones).

The product of its digits is 64800, while the sum is 42.

The spelling of 11915582136 in words is "eleven billion, nine hundred fifteen million, five hundred eighty-two thousand, one hundred thirty-six".