66248323 has 2 divisors, whose sum is σ = 66248324. Its totient is φ = 66248322.

The previous prime is 66248321. The next prime is 66248341. The reversal of 66248323 is 32384266.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66248323 - 2¹ = 66248321 is a prime.

Together with 66248321, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (66248321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33124161 + 33124162.

It is an arithmetic number, because the mean of its divisors is an integer number (33124162).

Almost surely, 2^66248323 is an apocalyptic number.

66248323 is a deficient number, since it is larger than the sum of its proper divisors (1).

66248323 is an equidigital number, since it uses as much as digits as its factorization.

66248323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 34.

The square root of 66248323 is about 8139.3072801068. The cubic root of 66248323 is about 404.6302025079.

The spelling of 66248323 in words is "sixty-six million, two hundred forty-eight thousand, three hundred twenty-three".