208159916912611 has 2 divisors, whose sum is σ = 208159916912612. Its totient is φ = 208159916912610.

The previous prime is 208159916912587. The next prime is 208159916912723. The reversal of 208159916912611 is 116219619951802.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 208159916912611 - 2⁵ = 208159916912579 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 208159916912611.

It is not a weakly prime, because it can be changed into another prime (208159916972611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104079958456305 + 104079958456306.

It is an arithmetic number, because the mean of its divisors is an integer number (104079958456306).

Almost surely, 2^{208159916912611} is an apocalyptic number.

208159916912611 is a deficient number, since it is larger than the sum of its proper divisors (1).

208159916912611 is an equidigital number, since it uses as much as digits as its factorization.

208159916912611 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4199040, while the sum is 61.

The spelling of 208159916912611 in words is "two hundred eight trillion, one hundred fifty-nine billion, nine hundred sixteen million, nine hundred twelve thousand, six hundred eleven".