220536612 has 18 divisors (see below), whose sum is σ = 557467638. Its totient is φ = 73512192.

The previous prime is 220536607. The next prime is 220536647. The reversal of 220536612 is 216635022.

It can be written as a sum of positive squares in only one way, i.e., 215032896 + 5503716 = 14664^2 + 2346^2 .

It is a tau number, because it is divible by the number of its divisors (18).

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 5 ways as a sum of consecutive naturals, for example, 3062973 + ... + 3063044.

Almost surely, 2^220536612 is an apocalyptic number.

It is an amenable number.

220536612 is an abundant number, since it is smaller than the sum of its proper divisors (336931026).

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

220536612 is a wasteful number, since it uses less digits than its factorization.

220536612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6126027 (or 6126022 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 220536612 is about 14850.4751439137. The cubic root of 220536612 is about 604.1714971399.

The spelling of 220536612 in words is "two hundred twenty million, five hundred thirty-six thousand, six hundred twelve".