2065650505 has 8 divisors (see below), whose sum is σ = 2496614400. Its totient is φ = 1640631216.

The previous prime is 2065650491. The next prime is 2065650523. The reversal of 2065650505 is 5050565602.

It is a happy number.

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 2065650505 - 2⁵ = 2065650473 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, 1485385 + ... + 1486774.

It is an arithmetic number, because the mean of its divisors is an integer number (312076800).

Almost surely, 2^2065650505 is an apocalyptic number.

It is an amenable number.

2065650505 is a deficient number, since it is larger than the sum of its proper divisors (430963895).

2065650505 is a wasteful number, since it uses less digits than its factorization.

2065650505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2972303.

The product of its (nonzero) digits is 45000, while the sum is 34.

The square root of 2065650505 is about 45449.4279942003. The cubic root of 2065650505 is about 1273.5586439121.

The spelling of 2065650505 in words is "two billion, sixty-five million, six hundred fifty thousand, five hundred five".