11323664256 has 64 divisors (see below), whose sum is σ = 30175516800. Its totient is φ = 3762378240.

The previous prime is 11323664227. The next prime is 11323664263. The reversal of 11323664256 is 65246632311.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×11323664256² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72015 + ... + 166833.

It is an arithmetic number, because the mean of its divisors is an integer number (471492450).

Almost surely, 2^11323664256 is an apocalyptic number.

11323664256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11323664256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15087758400).

11323664256 is an abundant number, since it is smaller than the sum of its proper divisors (18851852544).

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

11323664256 is an equidigital number, since it uses as much as digits as its factorization.

11323664256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95147 (or 95135 counting only the distinct ones).

The product of its digits is 155520, while the sum is 39.

The spelling of 11323664256 in words is "eleven billion, three hundred twenty-three million, six hundred sixty-four thousand, two hundred fifty-six".