208846671868151 has 2 divisors, whose sum is σ = 208846671868152. Its totient is φ = 208846671868150.

The previous prime is 208846671868097. The next prime is 208846671868207. The reversal of 208846671868151 is 151868176648802.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 208846671868151 - 2³⁰ = 208845598126327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (208846671867151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104423335934075 + 104423335934076.

It is an arithmetic number, because the mean of its divisors is an integer number (104423335934076).

Almost surely, 2^{208846671868151} is an apocalyptic number.

208846671868151 is a deficient number, since it is larger than the sum of its proper divisors (1).

208846671868151 is an equidigital number, since it uses as much as digits as its factorization.

208846671868151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 247726080, while the sum is 71.

The spelling of 208846671868151 in words is "two hundred eight trillion, eight hundred forty-six billion, six hundred seventy-one million, eight hundred sixty-eight thousand, one hundred fifty-one".