2055980161 has 2 divisors, whose sum is σ = 2055980162. Its totient is φ = 2055980160.

The previous prime is 2055980159. The next prime is 2055980167. The reversal of 2055980161 is 1610895502.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1113490161 + 942490000 = 33369^2 + 30700^2 .

It is a cyclic number.

It is not a de Polignac number, because 2055980161 - 2¹ = 2055980159 is a prime.

Together with 2055980159, 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 2055980161.

It is not a weakly prime, because it can be changed into another prime (2055980167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1027990080 + 1027990081.

It is an arithmetic number, because the mean of its divisors is an integer number (1027990081).

Almost surely, 2^2055980161 is an apocalyptic number.

It is an amenable number.

2055980161 is a deficient number, since it is larger than the sum of its proper divisors (1).

2055980161 is an equidigital number, since it uses as much as digits as its factorization.

2055980161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600, while the sum is 37.

The square root of 2055980161 is about 45342.9174292965. The cubic root of 2055980161 is about 1271.5681459983.

The spelling of 2055980161 in words is "two billion, fifty-five million, nine hundred eighty thousand, one hundred sixty-one".