65000663 has 16 divisors (see below), whose sum is σ = 80437056. Its totient is φ = 51148800.

The previous prime is 65000657. The next prime is 65000693. The reversal of 65000663 is 36600056.

It is a cyclic number.

It is not a de Polignac number, because 65000663 - 2¹⁸ = 64738519 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65000603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15713 + ... + 19413.

It is an arithmetic number, because the mean of its divisors is an integer number (5027316).

Almost surely, 2^65000663 is an apocalyptic number.

65000663 is a deficient number, since it is larger than the sum of its proper divisors (15436393).

65000663 is a wasteful number, since it uses less digits than its factorization.

65000663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3914.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 65000663 is about 8062.2988657082. The cubic root of 65000663 is about 402.0739429010.

The spelling of 65000663 in words is "sixty-five million, six hundred sixty-three", and thus it is an aban number.