66982063 has 2 divisors, whose sum is σ = 66982064. Its totient is φ = 66982062.

The previous prime is 66982061. The next prime is 66982067. The reversal of 66982063 is 36028966.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66982063 - 2¹ = 66982061 is a prime.

Together with 66982061, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66982061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33491031 + 33491032.

It is an arithmetic number, because the mean of its divisors is an integer number (33491032).

Almost surely, 2^66982063 is an apocalyptic number.

66982063 is a deficient number, since it is larger than the sum of its proper divisors (1).

66982063 is an equidigital number, since it uses as much as digits as its factorization.

66982063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 66982063 is about 8184.2570218683. The cubic root of 66982063 is about 406.1185620394.

The spelling of 66982063 in words is "sixty-six million, nine hundred eighty-two thousand, sixty-three".