65966895 has 12 divisors (see below), whose sum is σ = 114342696. Its totient is φ = 35182320.

The previous prime is 65966869. The next prime is 65966903. The reversal of 65966895 is 59866956.

It is not a de Polignac number, because 65966895 - 2⁵ = 65966863 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 732921 + ... + 733010.

It is an arithmetic number, because the mean of its divisors is an integer number (9528558).

Almost surely, 2^65966895 is an apocalyptic number.

65966895 is a deficient number, since it is larger than the sum of its proper divisors (48375801).

65966895 is a wasteful number, since it uses less digits than its factorization.

65966895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1465942 (or 1465939 counting only the distinct ones).

The product of its digits is 3499200, while the sum is 54.

The square root of 65966895 is about 8122.0006771731. Note that the first 3 decimals coincide. The cubic root of 65966895 is about 404.0564224533.

The spelling of 65966895 in words is "sixty-five million, nine hundred sixty-six thousand, eight hundred ninety-five".