2079218161 has 2 divisors, whose sum is σ = 2079218162. Its totient is φ = 2079218160.

The previous prime is 2079218153. The next prime is 2079218171. The reversal of 2079218161 is 1618129702.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1790897761 + 288320400 = 42319^2 + 16980^2 .

It is a cyclic number.

It is not a de Polignac number, because 2079218161 - 2³ = 2079218153 is a prime.

It is a super-2 number, since 2×2079218161² = 8646296322064443842, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2079218161.

It is not a weakly prime, because it can be changed into another prime (2079218111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1039609080 + 1039609081.

It is an arithmetic number, because the mean of its divisors is an integer number (1039609081).

Almost surely, 2^2079218161 is an apocalyptic number.

It is an amenable number.

2079218161 is a deficient number, since it is larger than the sum of its proper divisors (1).

2079218161 is an equidigital number, since it uses as much as digits as its factorization.

2079218161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 37.

The square root of 2079218161 is about 45598.4447212841. Note that the first 3 decimals coincide. The cubic root of 2079218161 is about 1276.3409009213.

The spelling of 2079218161 in words is "two billion, seventy-nine million, two hundred eighteen thousand, one hundred sixty-one".