65432165 has 16 divisors (see below), whose sum is σ = 81661440. Its totient is φ = 50276160.

The previous prime is 65432161. The next prime is 65432173. The reversal of 65432165 is 56123456.

It is not a de Polignac number, because 65432165 - 2² = 65432161 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65432161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20027 + ... + 23063.

It is an arithmetic number, because the mean of its divisors is an integer number (5103840).

Almost surely, 2^65432165 is an apocalyptic number.

It is an amenable number.

65432165 is a deficient number, since it is larger than the sum of its proper divisors (16229275).

65432165 is a wasteful number, since it uses less digits than its factorization.

65432165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3212.

The product of its digits is 21600, while the sum is 32.

The square root of 65432165 is about 8089.0150821963. The cubic root of 65432165 is about 402.9616938840.

The spelling of 65432165 in words is "sixty-five million, four hundred thirty-two thousand, one hundred sixty-five".