11558105808 has 20 divisors (see below), whose sum is σ = 29858440128. Its totient is φ = 3852701920.

The previous prime is 11558105807. The next prime is 11558105831. The reversal of 11558105808 is 80850185511.

It is a self number, because there is not a number n which added to its sum of digits gives 11558105808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11558105803) 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, 120396888 + ... + 120396983.

Almost surely, 2^11558105808 is an apocalyptic number.

It is an amenable number.

11558105808 is an abundant number, since it is smaller than the sum of its proper divisors (18300334320).

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

11558105808 is a wasteful number, since it uses less digits than its factorization.

11558105808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240793882 (or 240793876 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 42.

The spelling of 11558105808 in words is "eleven billion, five hundred fifty-eight million, one hundred five thousand, eight hundred eight".