22165589808 has 120 divisors (see below), whose sum is σ = 68537765088. Its totient is φ = 6651549696.

The previous prime is 22165589801. The next prime is 22165589813. The reversal of 22165589808 is 80898556122.

It is a happy number.

22165589808 is a `hidden beast` number, since 2 + 2 + 1 + 6 + 558 + 9 + 80 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (22165589801) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 140535 + ... + 253142.

Almost surely, 2^22165589808 is an apocalyptic number.

It is an amenable number.

22165589808 is an abundant number, since it is smaller than the sum of its proper divisors (46372175280).

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

22165589808 is a wasteful number, since it uses less digits than its factorization.

22165589808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393731 (or 393722 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 54.

The spelling of 22165589808 in words is "twenty-two billion, one hundred sixty-five million, five hundred eighty-nine thousand, eight hundred eight".