220593666276 has 135 divisors (see below), whose sum is σ = 584855970699. Its totient is φ = 72502636032.

The previous prime is 220593666253. The next prime is 220593666281. The reversal of 220593666276 is 672666395022.

It is a happy number.

The square root of 220593666276 is 469674.

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

It can be written as a sum of positive squares in 4 ways, for example, as 65653812900 + 154939853376 = 256230^2 + 393624^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 820050670 + ... + 820050938.

Almost surely, 2^220593666276 is an apocalyptic number.

220593666276 is the 469674-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220593666276

220593666276 is an abundant number, since it is smaller than the sum of its proper divisors (364262304423).

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

220593666276 is an frugal number, since it uses more digits than its factorization.

220593666276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748 (or 371 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 54.

The spelling of 220593666276 in words is "two hundred twenty billion, five hundred ninety-three million, six hundred sixty-six thousand, two hundred seventy-six".