216696558300841 has 2 divisors, whose sum is σ = 216696558300842. Its totient is φ = 216696558300840.

The previous prime is 216696558300811. The next prime is 216696558300851. The reversal of 216696558300841 is 148003855696612.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 145685600060841 + 71010958240000 = 12070029^2 + 8426800^2 .

It is a cyclic number.

It is not a de Polignac number, because 216696558300841 - 2²³ = 216696549912233 is a prime.

It is a super-2 number, since 2×216696558300841² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (216696558300811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108348279150420 + 108348279150421.

It is an arithmetic number, because the mean of its divisors is an integer number (108348279150421).

Almost surely, 2^{216696558300841} is an apocalyptic number.

It is an amenable number.

216696558300841 is a deficient number, since it is larger than the sum of its proper divisors (1).

216696558300841 is an equidigital number, since it uses as much as digits as its factorization.

216696558300841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 74649600, while the sum is 64.

The spelling of 216696558300841 in words is "two hundred sixteen trillion, six hundred ninety-six billion, five hundred fifty-eight million, three hundred thousand, eight hundred forty-one".