211670107161979 has 2 divisors, whose sum is σ = 211670107161980. Its totient is φ = 211670107161978.

The previous prime is 211670107161973. The next prime is 211670107162057. The reversal of 211670107161979 is 979161701076112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211670107161979 - 2⁴⁵ = 176485735073147 is a prime.

It is not a weakly prime, because it can be changed into another prime (211670107161973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105835053580989 + 105835053580990.

It is an arithmetic number, because the mean of its divisors is an integer number (105835053580990).

Almost surely, 2^{211670107161979} is an apocalyptic number.

211670107161979 is a deficient number, since it is larger than the sum of its proper divisors (1).

211670107161979 is an equidigital number, since it uses as much as digits as its factorization.

211670107161979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2000376, while the sum is 58.

The spelling of 211670107161979 in words is "two hundred eleven trillion, six hundred seventy billion, one hundred seven million, one hundred sixty-one thousand, nine hundred seventy-nine".