65266871 has 2 divisors, whose sum is σ = 65266872. Its totient is φ = 65266870.

The previous prime is 65266841. The next prime is 65266909. The reversal of 65266871 is 17866256.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65266871 - 2⁶ = 65266807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65266841) by changing a digit.

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 as a sum of consecutive naturals, namely, 32633435 + 32633436.

It is an arithmetic number, because the mean of its divisors is an integer number (32633436).

Almost surely, 2^65266871 is an apocalyptic number.

65266871 is a deficient number, since it is larger than the sum of its proper divisors (1).

65266871 is an equidigital number, since it uses as much as digits as its factorization.

65266871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 41.

The square root of 65266871 is about 8078.7914318913. The cubic root of 65266871 is about 402.6220886532.

The spelling of 65266871 in words is "sixty-five million, two hundred sixty-six thousand, eight hundred seventy-one".