220564516 has 12 divisors (see below), whose sum is σ = 388145520. Its totient is φ = 109665800.

The previous prime is 220564489. The next prime is 220564523. The reversal of 220564516 is 615465022.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153310 + ... + 154741.

It is an arithmetic number, because the mean of its divisors is an integer number (32345460).

Almost surely, 2^220564516 is an apocalyptic number.

It is an amenable number.

220564516 is a deficient number, since it is larger than the sum of its proper divisors (167581004).

220564516 is a wasteful number, since it uses less digits than its factorization.

220564516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308234 (or 308232 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 220564516 is about 14851.4146127566. The cubic root of 220564516 is about 604.1969775508.

The spelling of 220564516 in words is "two hundred twenty million, five hundred sixty-four thousand, five hundred sixteen".