2065761331 has 2 divisors, whose sum is σ = 2065761332. Its totient is φ = 2065761330.

The previous prime is 2065761329. The next prime is 2065761349. The reversal of 2065761331 is 1331675602.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2065761331 - 2¹ = 2065761329 is a prime.

It is a super-2 number, since 2×2065761331² = 8534739753309783122, which contains 22 as substring.

Together with 2065761329, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2065761361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1032880665 + 1032880666.

It is an arithmetic number, because the mean of its divisors is an integer number (1032880666).

Almost surely, 2^2065761331 is an apocalyptic number.

2065761331 is a deficient number, since it is larger than the sum of its proper divisors (1).

2065761331 is an equidigital number, since it uses as much as digits as its factorization.

2065761331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 2065761331 is about 45450.6472011125. The cubic root of 2065761331 is about 1273.5814197698.

The spelling of 2065761331 in words is "two billion, sixty-five million, seven hundred sixty-one thousand, three hundred thirty-one".