220683118658 has 18 divisors (see below), whose sum is σ = 349383979539. Its totient is φ = 104528129652.

The previous prime is 220683118637. The next prime is 220683118679. The reversal of 220683118658 is 856811386022.

It is an interprime number because it is at equal distance from previous prime (220683118637) and next prime (220683118679).

It can be written as a sum of positive squares in only one way, i.e., 110341559329 + 110341559329 = 332177^2 + 332177^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=332177.

It is a Duffinian number.

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 8 ways as a sum of consecutive naturals, for example, 12613985 + ... + 12631467.

Almost surely, 2^220683118658 is an apocalyptic number.

220683118658 is a deficient number, since it is larger than the sum of its proper divisors (128700860881).

220683118658 is an frugal number, since it uses more digits than its factorization.

220683118658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35006 (or 17504 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 50.

Multiplying 220683118658 by its sum of digits (50), we get a square (11034155932900 = 3321770²).

The spelling of 220683118658 in words is "two hundred twenty billion, six hundred eighty-three million, one hundred eighteen thousand, six hundred fifty-eight".