66346079 has 2 divisors, whose sum is σ = 66346080. Its totient is φ = 66346078.

The previous prime is 66346057. The next prime is 66346127. The reversal of 66346079 is 97064366.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66346079 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66346009) 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, 33173039 + 33173040.

It is an arithmetic number, because the mean of its divisors is an integer number (33173040).

Almost surely, 2^66346079 is an apocalyptic number.

66346079 is a deficient number, since it is larger than the sum of its proper divisors (1).

66346079 is an equidigital number, since it uses as much as digits as its factorization.

66346079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 41.

The square root of 66346079 is about 8145.3102457795. The cubic root of 66346079 is about 404.8291287520.

The spelling of 66346079 in words is "sixty-six million, three hundred forty-six thousand, seventy-nine".