66373679 has 2 divisors, whose sum is σ = 66373680. Its totient is φ = 66373678.

The previous prime is 66373633. The next prime is 66373733. The reversal of 66373679 is 97637366.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66373679 - 2²⁰ = 65325103 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66373579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33186839 + 33186840.

It is an arithmetic number, because the mean of its divisors is an integer number (33186840).

Almost surely, 2^66373679 is an apocalyptic number.

66373679 is a deficient number, since it is larger than the sum of its proper divisors (1).

66373679 is an equidigital number, since it uses as much as digits as its factorization.

66373679 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 857304, while the sum is 47.

The square root of 66373679 is about 8147.0042960588. The cubic root of 66373679 is about 404.8852573388.

The spelling of 66373679 in words is "sixty-six million, three hundred seventy-three thousand, six hundred seventy-nine".