2065100161 has 4 divisors (see below), whose sum is σ = 2098954324. Its totient is φ = 2031246000.

The previous prime is 2065100153. The next prime is 2065100171. The reversal of 2065100161 is 1610015602.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1059893136 + 1005207025 = 32556^2 + 31705^2 .

It is a cyclic number.

It is not a de Polignac number, because 2065100161 - 2³ = 2065100153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2065100131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16926990 + ... + 16927111.

It is an arithmetic number, because the mean of its divisors is an integer number (524738581).

Almost surely, 2^2065100161 is an apocalyptic number.

It is an amenable number.

2065100161 is a deficient number, since it is larger than the sum of its proper divisors (33854163).

2065100161 is an equidigital number, since it uses as much as digits as its factorization.

2065100161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33854162.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 2065100161 is about 45443.3731252424. The cubic root of 2065100161 is about 1273.4455306157.

Adding to 2065100161 its reverse (1610015602), we get a palindrome (3675115763).

The spelling of 2065100161 in words is "two billion, sixty-five million, one hundred thousand, one hundred sixty-one".