65428165 has 8 divisors (see below), whose sum is σ = 85651488. Its totient is φ = 47584080.

The previous prime is 65428163. The next prime is 65428177. The reversal of 65428165 is 56182456.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 65428165 - 2¹ = 65428163 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65428163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 594747 + ... + 594856.

It is an arithmetic number, because the mean of its divisors is an integer number (10706436).

Almost surely, 2^65428165 is an apocalyptic number.

It is an amenable number.

65428165 is a deficient number, since it is larger than the sum of its proper divisors (20223323).

65428165 is a wasteful number, since it uses less digits than its factorization.

65428165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1189619.

The product of its digits is 57600, while the sum is 37.

The square root of 65428165 is about 8088.7678295276. The cubic root of 65428165 is about 402.9534824301.

The spelling of 65428165 in words is "sixty-five million, four hundred twenty-eight thousand, one hundred sixty-five".