22000066 has 8 divisors (see below), whose sum is σ = 36000144. Its totient is φ = 10000020.

The previous prime is 22000061. The next prime is 22000087. The reversal of 22000066 is 66000022.

It is a sphenic number, since it is the product of 3 distinct primes.

22000066 is a modest number, since divided by 66 gives 22 as remainder.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (22000061) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 499980 + ... + 500023.

It is an arithmetic number, because the mean of its divisors is an integer number (4500018).

Almost surely, 2^22000066 is an apocalyptic number.

22000066 is a deficient number, since it is larger than the sum of its proper divisors (14000078).

22000066 is a wasteful number, since it uses less digits than its factorization.

22000066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000016.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 22000066 is about 4690.4227954418. The cubic root of 22000066 is about 280.2042132692.

Adding to 22000066 its reverse (66000022), we get a palindrome (88000088).

The spelling of 22000066 in words is "twenty-two million, sixty-six", and thus it is an aban number and an uban number.