11500222864 has 80 divisors (see below), whose sum is σ = 24223449600. Its totient is φ = 5288959104.

The previous prime is 11500222859. The next prime is 11500222879. The reversal of 11500222864 is 46822200511.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 16837467 + ... + 16838149.

It is an arithmetic number, because the mean of its divisors is an integer number (302793120).

Almost surely, 2^11500222864 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 11500222864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12111724800).

11500222864 is an abundant number, since it is smaller than the sum of its proper divisors (12723226736).

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

11500222864 is an equidigital number, since it uses as much as digits as its factorization.

11500222864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1209 (or 1177 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The spelling of 11500222864 in words is "eleven billion, five hundred million, two hundred twenty-two thousand, eight hundred sixty-four".