208827216097 has 2 divisors, whose sum is σ = 208827216098. Its totient is φ = 208827216096.

The previous prime is 208827216061. The next prime is 208827216127. The reversal of 208827216097 is 790612728802.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 189295476561 + 19531739536 = 435081^2 + 139756^2 .

It is a cyclic number.

It is not a de Polignac number, because 208827216097 - 2¹¹ = 208827214049 is a prime.

It is not a weakly prime, because it can be changed into another prime (208827216797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104413608048 + 104413608049.

It is an arithmetic number, because the mean of its divisors is an integer number (104413608049).

Almost surely, 2^208827216097 is an apocalyptic number.

It is an amenable number.

208827216097 is a deficient number, since it is larger than the sum of its proper divisors (1).

208827216097 is an equidigital number, since it uses as much as digits as its factorization.

208827216097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1354752, while the sum is 52.

The spelling of 208827216097 in words is "two hundred eight billion, eight hundred twenty-seven million, two hundred sixteen thousand, ninety-seven".