2005958065 has 8 divisors (see below), whose sum is σ = 2429234280. Its totient is φ = 1590043392.

The previous prime is 2005958047. The next prime is 2005958069. The reversal of 2005958065 is 5608595002.

It can be written as a sum of positive squares in 4 ways, for example, as 296631729 + 1709326336 = 17223^2 + 41344^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2005958065 - 2¹³ = 2005949873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2005958069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1839784 + ... + 1840873.

It is an arithmetic number, because the mean of its divisors is an integer number (303654285).

Almost surely, 2^2005958065 is an apocalyptic number.

It is an amenable number.

2005958065 is a deficient number, since it is larger than the sum of its proper divisors (423276215).

2005958065 is a wasteful number, since it uses less digits than its factorization.

2005958065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3680771.

The product of its (nonzero) digits is 108000, while the sum is 40.

The square root of 2005958065 is about 44787.9232048105. The cubic root of 2005958065 is about 1261.1709248276.

The spelling of 2005958065 in words is "two billion, five million, nine hundred fifty-eight thousand, sixty-five".