220645622513759 has 2 divisors, whose sum is σ = 220645622513760. Its totient is φ = 220645622513758.

The previous prime is 220645622513741. The next prime is 220645622513761. The reversal of 220645622513759 is 957315226546022.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 220645622513759 - 2²⁰ = 220645621465183 is a prime.

It is a Sophie Germain prime.

Together with 220645622513761, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 220645622513698 and 220645622513707.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220645622512759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110322811256879 + 110322811256880.

It is an arithmetic number, because the mean of its divisors is an integer number (110322811256880).

Almost surely, 2^{220645622513759} is an apocalyptic number.

220645622513759 is a deficient number, since it is larger than the sum of its proper divisors (1).

220645622513759 is an equidigital number, since it uses as much as digits as its factorization.

220645622513759 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432000, while the sum is 59.

The spelling of 220645622513759 in words is "two hundred twenty trillion, six hundred forty-five billion, six hundred twenty-two million, five hundred thirteen thousand, seven hundred fifty-nine".