667670385337 has 2 divisors, whose sum is σ = 667670385338. Its totient is φ = 667670385336.

The previous prime is 667670385323. The next prime is 667670385397. The reversal of 667670385337 is 733583076766.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 361253889936 + 306416495401 = 601044^2 + 553549^2 .

It is a cyclic number.

It is not a de Polignac number, because 667670385337 - 2¹⁹ = 667669861049 is a prime.

It is not a weakly prime, because it can be changed into another prime (667670385307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333835192668 + 333835192669.

It is an arithmetic number, because the mean of its divisors is an integer number (333835192669).

Almost surely, 2^667670385337 is an apocalyptic number.

It is an amenable number.

667670385337 is a deficient number, since it is larger than the sum of its proper divisors (1).

667670385337 is an equidigital number, since it uses as much as digits as its factorization.

667670385337 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80015040, while the sum is 61.

The spelling of 667670385337 in words is "six hundred sixty-seven billion, six hundred seventy million, three hundred eighty-five thousand, three hundred thirty-seven".