11322447644 has 12 divisors (see below), whose sum is σ = 20979829584. Its totient is φ = 5328210624.

The previous prime is 11322447629. The next prime is 11322447649. The reversal of 11322447644 is 44674422311.

It is a super-2 number, since 2×11322447644² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11322447598 and 11322447607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11322447649) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 83253224 + ... + 83253359.

It is an arithmetic number, because the mean of its divisors is an integer number (1748319132).

Almost surely, 2^11322447644 is an apocalyptic number.

It is an amenable number.

11322447644 is a deficient number, since it is larger than the sum of its proper divisors (9657381940).

11322447644 is a wasteful number, since it uses less digits than its factorization.

11322447644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166506604 (or 166506602 counting only the distinct ones).

The product of its digits is 129024, while the sum is 38.

Adding to 11322447644 its reverse (44674422311), we get a palindrome (55996869955).

The spelling of 11322447644 in words is "eleven billion, three hundred twenty-two million, four hundred forty-seven thousand, six hundred forty-four".