220000066 has 16 divisors (see below), whose sum is σ = 387692928. Its totient is φ = 92307600.

The previous prime is 220000051. The next prime is 220000073. The reversal of 220000066 is 660000022.

220000066 is a modest number, since divided by 66 gives 22 as remainder.

It is a zygodrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 384330 + ... + 384901.

It is an arithmetic number, because the mean of its divisors is an integer number (24230808).

Almost surely, 2^220000066 is an apocalyptic number.

220000066 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

220000066 is a deficient number, since it is larger than the sum of its proper divisors (167692862).

220000066 is a wasteful number, since it uses less digits than its factorization.

220000066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769257.

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

The square root of 220000066 is about 14832.3991990507. The cubic root of 220000066 is about 603.6811340479.

Adding to 220000066 its reverse (660000022), we get a palindrome (880000088).

The spelling of 220000066 in words is "two hundred twenty million, sixty-six", and thus it is an aban number.