2065165071 has 4 divisors (see below), whose sum is σ = 2753553432. Its totient is φ = 1376776712.

The previous prime is 2065165051. The next prime is 2065165073. The reversal of 2065165071 is 1705615602.

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

It is a cyclic number.

It is not a de Polignac number, because 2065165071 - 2¹⁸ = 2064902927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2065165073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 344194176 + ... + 344194181.

It is an arithmetic number, because the mean of its divisors is an integer number (688388358).

Almost surely, 2^2065165071 is an apocalyptic number.

2065165071 is a deficient number, since it is larger than the sum of its proper divisors (688388361).

2065165071 is an equidigital number, since it uses as much as digits as its factorization.

2065165071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688388360.

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 2065165071 is about 45444.0873051710. The cubic root of 2065165071 is about 1273.4588727423.

The spelling of 2065165071 in words is "two billion, sixty-five million, one hundred sixty-five thousand, seventy-one".