65441765 has 16 divisors (see below), whose sum is σ = 80631936. Its totient is φ = 50971200.

The previous prime is 65441711. The next prime is 65441767. The reversal of 65441765 is 56714456.

It is not a de Polignac number, because 65441765 - 2¹⁶ = 65376229 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65441767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28355 + ... + 30575.

It is an arithmetic number, because the mean of its divisors is an integer number (5039496).

Almost surely, 2^65441765 is an apocalyptic number.

It is an amenable number.

65441765 is a deficient number, since it is larger than the sum of its proper divisors (15190171).

65441765 is a wasteful number, since it uses less digits than its factorization.

65441765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2380.

The product of its digits is 100800, while the sum is 38.

The square root of 65441765 is about 8089.6084577685. The cubic root of 65441765 is about 402.9814000081.

The spelling of 65441765 in words is "sixty-five million, four hundred forty-one thousand, seven hundred sixty-five".