667672444337 has 2 divisors, whose sum is σ = 667672444338. Its totient is φ = 667672444336.

The previous prime is 667672444331. The next prime is 667672444357. The reversal of 667672444337 is 733444276766.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 660474788416 + 7197655921 = 812696^2 + 84839^2 .

It is a cyclic number.

It is not a de Polignac number, because 667672444337 - 2²⁰ = 667671395761 is a prime.

It is not a weakly prime, because it can be changed into another prime (667672444331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333836222168 + 333836222169.

It is an arithmetic number, because the mean of its divisors is an integer number (333836222169).

Almost surely, 2^667672444337 is an apocalyptic number.

It is an amenable number.

667672444337 is a deficient number, since it is larger than the sum of its proper divisors (1).

667672444337 is an equidigital number, since it uses as much as digits as its factorization.

667672444337 is an evil number, because the sum of its binary digits is even.

The product of its digits is 85349376, while the sum is 59.

The spelling of 667672444337 in words is "six hundred sixty-seven billion, six hundred seventy-two million, four hundred forty-four thousand, three hundred thirty-seven".