65864061 has 12 divisors (see below), whose sum is σ = 97161792. Its totient is φ = 42974856.

The previous prime is 65864059. The next prime is 65864077. The reversal of 65864061 is 16046856.

65864061 is a `hidden beast` number, since 6 + 5 + 8 + 640 + 6 + 1 = 666.

It is not a de Polignac number, because 65864061 - 2¹ = 65864059 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65864011) 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, 77431 + ... + 78276.

It is an arithmetic number, because the mean of its divisors is an integer number (8096816).

Almost surely, 2^65864061 is an apocalyptic number.

It is an amenable number.

65864061 is a deficient number, since it is larger than the sum of its proper divisors (31297731).

65864061 is a wasteful number, since it uses less digits than its factorization.

65864061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155760 (or 155757 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 65864061 is about 8115.6676250325. The cubic root of 65864061 is about 403.8463557341.

The spelling of 65864061 in words is "sixty-five million, eight hundred sixty-four thousand, sixty-one".