65676671 has 2 divisors, whose sum is σ = 65676672. Its totient is φ = 65676670.

The previous prime is 65676647. The next prime is 65676697. The reversal of 65676671 is 17667656.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65676671 - 2¹⁸ = 65414527 is a prime.

It is a super-2 number, since 2×65676671² = 8626850227284482, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65676601) 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, 32838335 + 32838336.

It is an arithmetic number, because the mean of its divisors is an integer number (32838336).

Almost surely, 2^65676671 is an apocalyptic number.

65676671 is a deficient number, since it is larger than the sum of its proper divisors (1).

65676671 is an equidigital number, since it uses as much as digits as its factorization.

65676671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 317520, while the sum is 44.

The square root of 65676671 is about 8104.1144488463. The cubic root of 65676671 is about 403.4629971898.

The spelling of 65676671 in words is "sixty-five million, six hundred seventy-six thousand, six hundred seventy-one".