65652165 has 24 divisors (see below), whose sum is σ = 115667448. Its totient is φ = 34439040.

The previous prime is 65652151. The next prime is 65652179. The reversal of 65652165 is 56125656.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (65652151) and next prime (65652179).

It can be written as a sum of positive squares in 4 ways, for example, as 381924 + 65270241 = 618^2 + 8079^2 .

It is not a de Polignac number, because 65652165 - 2⁵ = 65652133 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9214 + ... + 14703.

It is an arithmetic number, because the mean of its divisors is an integer number (4819477).

Almost surely, 2^65652165 is an apocalyptic number.

It is an amenable number.

65652165 is a deficient number, since it is larger than the sum of its proper divisors (50015283).

65652165 is a wasteful number, since it uses less digits than its factorization.

65652165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23989 (or 23986 counting only the distinct ones).

The product of its digits is 54000, while the sum is 36.

The square root of 65652165 is about 8102.6023597360. The cubic root of 65652165 is about 403.4128094338.

The spelling of 65652165 in words is "sixty-five million, six hundred fifty-two thousand, one hundred sixty-five".