22171555066 has 16 divisors (see below), whose sum is σ = 34165241856. Its totient is φ = 10783300176.

The previous prime is 22171554967. The next prime is 22171555093. The reversal of 22171555066 is 66055517122.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 255795 + ... + 331321.

It is an arithmetic number, because the mean of its divisors is an integer number (2135327616).

Almost surely, 2^22171555066 is an apocalyptic number.

22171555066 is a deficient number, since it is larger than the sum of its proper divisors (11993686790).

22171555066 is a wasteful number, since it uses less digits than its factorization.

22171555066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79533.

The product of its (nonzero) digits is 126000, while the sum is 40.

The spelling of 22171555066 in words is "twenty-two billion, one hundred seventy-one million, five hundred fifty-five thousand, sixty-six".