65065617 has 6 divisors (see below), whose sum is σ = 93983682. Its totient is φ = 43377072.

The previous prime is 65065577. The next prime is 65065661. The reversal of 65065617 is 71656056.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 54819216 + 10246401 = 7404^2 + 3201^2 .

It is not a de Polignac number, because 65065617 - 2⁷ = 65065489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65065687) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3614748 + ... + 3614765.

It is an arithmetic number, because the mean of its divisors is an integer number (15663947).

Almost surely, 2^65065617 is an apocalyptic number.

It is an amenable number.

65065617 is a deficient number, since it is larger than the sum of its proper divisors (28918065).

65065617 is a wasteful number, since it uses less digits than its factorization.

65065617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7229519 (or 7229516 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 65065617 is about 8066.3261154010. The cubic root of 65065617 is about 402.2078267484.

The spelling of 65065617 in words is "sixty-five million, sixty-five thousand, six hundred seventeen".