220565064 has 16 divisors (see below), whose sum is σ = 551412720. Its totient is φ = 73521680.

The previous prime is 220565057. The next prime is 220565087. The reversal of 220565064 is 460565022.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4595082 + ... + 4595129.

It is an arithmetic number, because the mean of its divisors is an integer number (34463295).

Almost surely, 2^220565064 is an apocalyptic number.

220565064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

220565064 is an abundant number, since it is smaller than the sum of its proper divisors (330847656).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220565064 is a wasteful number, since it uses less digits than its factorization.

220565064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9190220 (or 9190216 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 220565064 is about 14851.4330621661. The cubic root of 220565064 is about 604.1974779330.

The spelling of 220565064 in words is "two hundred twenty million, five hundred sixty-five thousand, sixty-four".