216027658318757 has 2 divisors, whose sum is σ = 216027658318758. Its totient is φ = 216027658318756.

The previous prime is 216027658318727. The next prime is 216027658318861. The reversal of 216027658318757 is 757813856720612.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 145661581693156 + 70366076625601 = 12069034^2 + 8388449^2 .

It is a cyclic number.

It is not a de Polignac number, because 216027658318757 - 2¹⁴ = 216027658302373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (216027658318727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108013829159378 + 108013829159379.

It is an arithmetic number, because the mean of its divisors is an integer number (108013829159379).

Almost surely, 2^{216027658318757} is an apocalyptic number.

It is an amenable number.

216027658318757 is a deficient number, since it is larger than the sum of its proper divisors (1).

216027658318757 is an equidigital number, since it uses as much as digits as its factorization.

216027658318757 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 237081600, while the sum is 68.

The spelling of 216027658318757 in words is "two hundred sixteen trillion, twenty-seven billion, six hundred fifty-eight million, three hundred eighteen thousand, seven hundred fifty-seven".