2061330065 has 8 divisors (see below), whose sum is σ = 2496290280. Its totient is φ = 1633934592.

The previous prime is 2061330059. The next prime is 2061330071. The reversal of 2061330065 is 5600331602.

It is an interprime number because it is at equal distance from previous prime (2061330059) and next prime (2061330071).

It can be written as a sum of positive squares in 4 ways, for example, as 128232976 + 1933097089 = 11324^2 + 43967^2 .

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 2061330065 - 2⁴ = 2061330049 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1890584 + ... + 1891673.

It is an arithmetic number, because the mean of its divisors is an integer number (312036285).

Almost surely, 2^2061330065 is an apocalyptic number.

It is an amenable number.

2061330065 is a deficient number, since it is larger than the sum of its proper divisors (434960215).

2061330065 is a wasteful number, since it uses less digits than its factorization.

2061330065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3782371.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 2061330065 is about 45401.8729239224. The cubic root of 2061330065 is about 1272.6701143958.

Adding to 2061330065 its reverse (5600331602), we get a palindrome (7661661667).

The spelling of 2061330065 in words is "two billion, sixty-one million, three hundred thirty thousand, sixty-five".