208827216133 has 2 divisors, whose sum is σ = 208827216134. Its totient is φ = 208827216132.

The previous prime is 208827216131. The next prime is 208827216137. The reversal of 208827216133 is 331612728802.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 155979183364 + 52848032769 = 394942^2 + 229887^2 .

It is a cyclic number.

It is not a de Polignac number, because 208827216133 - 2¹ = 208827216131 is a prime.

Together with 208827216131, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 208827216133.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (208827216131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104413608066 + 104413608067.

It is an arithmetic number, because the mean of its divisors is an integer number (104413608067).

Almost surely, 2^208827216133 is an apocalyptic number.

It is an amenable number.

208827216133 is a deficient number, since it is larger than the sum of its proper divisors (1).

208827216133 is an equidigital number, since it uses as much as digits as its factorization.

208827216133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 193536, while the sum is 43.

The spelling of 208827216133 in words is "two hundred eight billion, eight hundred twenty-seven million, two hundred sixteen thousand, one hundred thirty-three".