65078163 has 12 divisors (see below), whose sum is σ = 94134040. Its totient is φ = 43324416.

The previous prime is 65078161. The next prime is 65078177. The reversal of 65078163 is 36187056.

It is not a de Polignac number, because 65078163 - 2¹ = 65078161 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65078161) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2220 + ... + 11622.

Almost surely, 2^65078163 is an apocalyptic number.

65078163 is a deficient number, since it is larger than the sum of its proper divisors (29055877).

65078163 is a wasteful number, since it uses less digits than its factorization.

65078163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10178 (or 10175 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 65078163 is about 8067.1037553759. The cubic root of 65078163 is about 402.2336764230.

The spelling of 65078163 in words is "sixty-five million, seventy-eight thousand, one hundred sixty-three".