2065071643 has 8 divisors (see below), whose sum is σ = 2136934800. Its totient is φ = 1993252128.

The previous prime is 2065071607. The next prime is 2065071647. The reversal of 2065071643 is 3461705602.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-2065071643 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2065071599 and 2065071608.

It is not an unprimeable number, because it can be changed into a prime (2065071647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107193 + ... + 124981.

It is an arithmetic number, because the mean of its divisors is an integer number (267116850).

Almost surely, 2^2065071643 is an apocalyptic number.

2065071643 is a deficient number, since it is larger than the sum of its proper divisors (71863157).

2065071643 is a wasteful number, since it uses less digits than its factorization.

2065071643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21821.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 2065071643 is about 45443.0593490359. The cubic root of 2065071643 is about 1273.4396687069.

The spelling of 2065071643 in words is "two billion, sixty-five million, seventy-one thousand, six hundred forty-three".