220680064264 has 48 divisors (see below), whose sum is σ = 455331019500. Its totient is φ = 100194357120.

The previous prime is 220680064261. The next prime is 220680064373. The reversal of 220680064264 is 462460086022.

It can be written as a sum of positive squares in 2 ways, for example, as 198372252100 + 22307812164 = 445390^2 + 149358^2 .

It is not an unprimeable number, because it can be changed into a prime (220680064261) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 718962 + ... + 978910.

Almost surely, 2^220680064264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220680064264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (227665509750).

220680064264 is an abundant number, since it is smaller than the sum of its proper divisors (234650955236).

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

220680064264 is a wasteful number, since it uses less digits than its factorization.

220680064264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260854 (or 260839 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 40.

The spelling of 220680064264 in words is "two hundred twenty billion, six hundred eighty million, sixty-four thousand, two hundred sixty-four".