11558499036 has 96 divisors (see below), whose sum is σ = 32776773120. Its totient is φ = 3094738944.

The previous prime is 11558498993. The next prime is 11558499059. The reversal of 11558499036 is 63099485511.

11558499036 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 11558499036.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 315355 + ... + 350093.

It is an arithmetic number, because the mean of its divisors is an integer number (341424720).

Almost surely, 2^11558499036 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11558499036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16388386560).

11558499036 is an abundant number, since it is smaller than the sum of its proper divisors (21218274084).

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

11558499036 is a wasteful number, since it uses less digits than its factorization.

11558499036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35003 (or 35001 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 51.

The spelling of 11558499036 in words is "eleven billion, five hundred fifty-eight million, four hundred ninety-nine thousand, thirty-six".