220517066 has 16 divisors (see below), whose sum is σ = 412395840. Its totient is φ = 85915680.

The previous prime is 220517057. The next prime is 220517071. The reversal of 220517066 is 660715022.

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, 715811 + ... + 716118.

It is an arithmetic number, because the mean of its divisors is an integer number (25774740).

Almost surely, 2^220517066 is an apocalyptic number.

220517066 is a deficient number, since it is larger than the sum of its proper divisors (191878774).

220517066 is a wasteful number, since it uses less digits than its factorization.

220517066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1431949.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 220517066 is about 14849.8170359099. The cubic root of 220517066 is about 604.1536475186.

The spelling of 220517066 in words is "two hundred twenty million, five hundred seventeen thousand, sixty-six".