220705238087 has 2 divisors, whose sum is σ = 220705238088. Its totient is φ = 220705238086.

The previous prime is 220705238057. The next prime is 220705238093. The reversal of 220705238087 is 780832507022.

220705238087 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 220705238087 - 2¹⁰ = 220705237063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220705238027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110352619043 + 110352619044.

It is an arithmetic number, because the mean of its divisors is an integer number (110352619044).

Almost surely, 2^220705238087 is an apocalyptic number.

220705238087 is a deficient number, since it is larger than the sum of its proper divisors (1).

220705238087 is an equidigital number, since it uses as much as digits as its factorization.

220705238087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 376320, while the sum is 44.

The spelling of 220705238087 in words is "two hundred twenty billion, seven hundred five million, two hundred thirty-eight thousand, eighty-seven".