13644651622 has 24 divisors (see below), whose sum is σ = 25209029304. Its totient is φ = 5503724352.

The previous prime is 13644651563. The next prime is 13644651623. The reversal of 13644651622 is 22615644631.

13644651622 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13644651623) 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 11 ways as a sum of consecutive naturals, for example, 4093368 + ... + 4096699.

It is an arithmetic number, because the mean of its divisors is an integer number (1050376221).

Almost surely, 2^13644651622 is an apocalyptic number.

13644651622 is a deficient number, since it is larger than the sum of its proper divisors (11564377682).

13644651622 is a wasteful number, since it uses less digits than its factorization.

13644651622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8190100 (or 8190093 counting only the distinct ones).

The product of its digits is 207360, while the sum is 40.

The spelling of 13644651622 in words is "thirteen billion, six hundred forty-four million, six hundred fifty-one thousand, six hundred twenty-two".