66376379 has 2 divisors, whose sum is σ = 66376380. Its totient is φ = 66376378.

The previous prime is 66376369. The next prime is 66376399. The reversal of 66376379 is 97367366.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66376379 - 2¹² = 66372283 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (66376309) 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, 33188189 + 33188190.

It is an arithmetic number, because the mean of its divisors is an integer number (33188190).

Almost surely, 2^66376379 is an apocalyptic number.

66376379 is a deficient number, since it is larger than the sum of its proper divisors (1).

66376379 is an equidigital number, since it uses as much as digits as its factorization.

66376379 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 66376379 is about 8147.1699994538. The cubic root of 66376379 is about 404.8907473432.

The spelling of 66376379 in words is "sixty-six million, three hundred seventy-six thousand, three hundred seventy-nine".