220246664 has 16 divisors (see below), whose sum is σ = 450504720. Its totient is φ = 100112080.

The previous prime is 220246639. The next prime is 220246673. The reversal of 220246664 is 466642022.

220246664 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 220246664.

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, 1251314 + ... + 1251489.

It is an arithmetic number, because the mean of its divisors is an integer number (28156545).

Almost surely, 2^220246664 is an apocalyptic number.

It is an amenable number.

220246664 is an abundant number, since it is smaller than the sum of its proper divisors (230258056).

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

220246664 is a wasteful number, since it uses less digits than its factorization.

220246664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2502820 (or 2502816 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

The square root of 220246664 is about 14840.7096865345. The cubic root of 220246664 is about 603.9066051521.

Adding to 220246664 its reverse (466642022), we get a palindrome (686888686).

The spelling of 220246664 in words is "two hundred twenty million, two hundred forty-six thousand, six hundred sixty-four".