65211065 has 16 divisors (see below), whose sum is σ = 83099520. Its totient is φ = 48956160.

The previous prime is 65211023. The next prime is 65211077. The reversal of 65211065 is 56011256.

It is not a de Polignac number, because 65211065 - 2¹⁸ = 64948921 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34700 + ... + 36530.

It is an arithmetic number, because the mean of its divisors is an integer number (5193720).

Almost surely, 2^65211065 is an apocalyptic number.

It is an amenable number.

65211065 is a deficient number, since it is larger than the sum of its proper divisors (17888455).

65211065 is a wasteful number, since it uses less digits than its factorization.

65211065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2272.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 65211065 is about 8075.3368350800. The cubic root of 65211065 is about 402.5073028265.

The spelling of 65211065 in words is "sixty-five million, two hundred eleven thousand, sixty-five".