16644243032 has 16 divisors (see below), whose sum is σ = 31246543800. Its totient is φ = 8311831360.

The previous prime is 16644242987. The next prime is 16644243037. The reversal of 16644243032 is 23034244661.

16644243032 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×16644243032² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16644242983 and 16644243001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16644243037) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1279394 + ... + 1292337.

Almost surely, 2^16644243032 is an apocalyptic number.

It is an amenable number.

16644243032 is a deficient number, since it is larger than the sum of its proper divisors (14602300768).

16644243032 is a wasteful number, since it uses less digits than its factorization.

16644243032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2572546 (or 2572542 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 35.

Adding to 16644243032 its reverse (23034244661), we get a palindrome (39678487693).

The spelling of 16644243032 in words is "sixteen billion, six hundred forty-four million, two hundred forty-three thousand, thirty-two".