220492228356 has 135 divisors (see below), whose sum is σ = 608787723621. Its totient is φ = 69578411616.

The previous prime is 220492228351. The next prime is 220492228357. The reversal of 220492228356 is 653822294022.

The square root of 220492228356 is 469566.

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

220492228356 is a `hidden beast` number, since 2 + 204 + 92 + 2 + 2 + 8 + 356 = 666.

It can be written as a sum of positive squares in only one way, i.e., 217930248900 + 2561979456 = 466830^2 + 50616^2 .

It is not an unprimeable number, because it can be changed into a prime (220492228351) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 160590886 + ... + 160592258.

Almost surely, 2^220492228356 is an apocalyptic number.

220492228356 is the 469566-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220492228356

220492228356 is an abundant number, since it is smaller than the sum of its proper divisors (388295495265).

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

220492228356 is an equidigital number, since it uses as much as digits as its factorization.

220492228356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2800 (or 1397 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 45.

The spelling of 220492228356 in words is "two hundred twenty billion, four hundred ninety-two million, two hundred twenty-eight thousand, three hundred fifty-six".