22621495808 has 150 divisors (see below), whose sum is σ = 50202469779. Its totient is φ = 10182565888.

The previous prime is 22621495789. The next prime is 22621495811. The reversal of 22621495808 is 80859412622.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 3 ways, for example, as 21776314624 + 845181184 = 147568^2 + 29072^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=106352.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 983543285 + ... + 983543307.

Almost surely, 2^22621495808 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 22621495808

22621495808 is an abundant number, since it is smaller than the sum of its proper divisors (27580973971).

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

22621495808 is an frugal number, since it uses more digits than its factorization.

22621495808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132 (or 42 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 47.

The spelling of 22621495808 in words is "twenty-two billion, six hundred twenty-one million, four hundred ninety-five thousand, eight hundred eight".