220255236659 has 4 divisors (see below), whose sum is σ = 220621718520. Its totient is φ = 219888754800.

The previous prime is 220255236637. The next prime is 220255236713. The reversal of 220255236659 is 956632552022.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220255236659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220255236629) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 183240029 + ... + 183241230.

It is an arithmetic number, because the mean of its divisors is an integer number (55155429630).

Almost surely, 2^220255236659 is an apocalyptic number.

220255236659 is a deficient number, since it is larger than the sum of its proper divisors (366481861).

220255236659 is an equidigital number, since it uses as much as digits as its factorization.

220255236659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366481860.

The product of its (nonzero) digits is 1944000, while the sum is 47.

The spelling of 220255236659 in words is "two hundred twenty billion, two hundred fifty-five million, two hundred thirty-six thousand, six hundred fifty-nine".