220645622514287 has 2 divisors, whose sum is σ = 220645622514288. Its totient is φ = 220645622514286.

The previous prime is 220645622514271. The next prime is 220645622514323. The reversal of 220645622514287 is 782415226546022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 220645622514287 - 2⁴ = 220645622514271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220645622514787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110322811257143 + 110322811257144.

It is an arithmetic number, because the mean of its divisors is an integer number (110322811257144).

Almost surely, 2^{220645622514287} is an apocalyptic number.

220645622514287 is a deficient number, since it is larger than the sum of its proper divisors (1).

220645622514287 is an equidigital number, since it uses as much as digits as its factorization.

220645622514287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25804800, while the sum is 56.

The spelling of 220645622514287 in words is "two hundred twenty trillion, six hundred forty-five billion, six hundred twenty-two million, five hundred fourteen thousand, two hundred eighty-seven".