22496533644 has 96 divisors (see below), whose sum is σ = 58294978560. Its totient is φ = 6708734208.

The previous prime is 22496533637. The next prime is 22496533711. The reversal of 22496533644 is 44633569422.

It is a junction number, because it is equal to n+sod(n) for n = 22496533593 and 22496533602.

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 31 ways as a sum of consecutive naturals, for example, 740302 + ... + 770090.

It is an arithmetic number, because the mean of its divisors is an integer number (607239360).

Almost surely, 2^22496533644 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 22496533644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29147489280).

22496533644 is an abundant number, since it is smaller than the sum of its proper divisors (35798444916).

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

22496533644 is a wasteful number, since it uses less digits than its factorization.

22496533644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29959 (or 29957 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 48.

The spelling of 22496533644 in words is "twenty-two billion, four hundred ninety-six million, five hundred thirty-three thousand, six hundred forty-four".