220188054564 has 135 divisors (see below), whose sum is σ = 582972052971. Its totient is φ = 72469734480.

The previous prime is 220188054553. The next prime is 220188054599. The reversal of 220188054564 is 465450881022.

The square root of 220188054564 is 469242.

It is a perfect power (a square), and thus also a powerful number.

220188054564 is a `hidden beast` number, since 2 + 2 + 0 + 1 + 8 + 80 + 5 + 4 + 564 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 1106472537 + ... + 1106472735.

Almost surely, 2^220188054564 is an apocalyptic number.

220188054564 is the 469242-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220188054564

220188054564 is an abundant number, since it is smaller than the sum of its proper divisors (362783998407).

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

220188054564 is an equidigital number, since it uses as much as digits as its factorization.

220188054564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676 (or 335 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 45.

The spelling of 220188054564 in words is "two hundred twenty billion, one hundred eighty-eight million, fifty-four thousand, five hundred sixty-four".