220358891776 has 27 divisors (see below), whose sum is σ = 439871999371. Its totient is φ = 110175690496.

The previous prime is 220358891747. The next prime is 220358891783. The reversal of 220358891776 is 677198853022.

It is a happy number.

The square root of 220358891776 is 469424.

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

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 220358891776.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 7496115 + ... + 7525453.

Almost surely, 2^220358891776 is an apocalyptic number.

220358891776 is the 469424-th square number.

It is an amenable number.

220358891776 is a deficient number, since it is larger than the sum of its proper divisors (219513107595).

220358891776 is an frugal number, since it uses more digits than its factorization.

220358891776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58694 (or 29341 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 58.

The spelling of 220358891776 in words is "two hundred twenty billion, three hundred fifty-eight million, eight hundred ninety-one thousand, seven hundred seventy-six".