220705841018 has 24 divisors (see below), whose sum is σ = 370845272700. Its totient is φ = 98351670144.

The previous prime is 220705841009. The next prime is 220705841039. The reversal of 220705841018 is 810148507022.

It can be written as a sum of positive squares in 6 ways, for example, as 83314781449 + 137391059569 = 288643^2 + 370663^2 .

It is a super-2 number, since 2×220705841018² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11248403 + ... + 11268006.

Almost surely, 2^220705841018 is an apocalyptic number.

220705841018 is a deficient number, since it is larger than the sum of its proper divisors (150139431682).

220705841018 is a wasteful number, since it uses less digits than its factorization.

220705841018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22516466 (or 22516453 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 38.

The spelling of 220705841018 in words is "two hundred twenty billion, seven hundred five million, eight hundred forty-one thousand, eighteen".