220650311689 has 2 divisors, whose sum is σ = 220650311690. Its totient is φ = 220650311688.

The previous prime is 220650311633. The next prime is 220650311741. The reversal of 220650311689 is 986113056022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 174686382025 + 45963929664 = 417955^2 + 214392^2 .

It is a cyclic number.

It is not a de Polignac number, because 220650311689 - 2¹¹ = 220650309641 is a prime.

It is not a weakly prime, because it can be changed into another prime (220650311389) 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 as a sum of consecutive naturals, namely, 110325155844 + 110325155845.

It is an arithmetic number, because the mean of its divisors is an integer number (110325155845).

Almost surely, 2^220650311689 is an apocalyptic number.

It is an amenable number.

220650311689 is a deficient number, since it is larger than the sum of its proper divisors (1).

220650311689 is an equidigital number, since it uses as much as digits as its factorization.

220650311689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 155520, while the sum is 43.

The spelling of 220650311689 in words is "two hundred twenty billion, six hundred fifty million, three hundred eleven thousand, six hundred eighty-nine".