22166515808 has 48 divisors (see below), whose sum is σ = 44290665216. Its totient is φ = 10918346880.

The previous prime is 22166515739. The next prime is 22166515831. The reversal of 22166515808 is 80851566122.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3502535 + ... + 3508857.

It is an arithmetic number, because the mean of its divisors is an integer number (922722192).

Almost surely, 2^22166515808 is an apocalyptic number.

It is an amenable number.

22166515808 is a deficient number, since it is larger than the sum of its proper divisors (22124149408).

22166515808 is a wasteful number, since it uses less digits than its factorization.

22166515808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7947 (or 7939 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 44.

The spelling of 22166515808 in words is "twenty-two billion, one hundred sixty-six million, five hundred fifteen thousand, eight hundred eight".