667670385325 has 12 divisors (see below), whose sum is σ = 829004975380. Its totient is φ = 533430696960.

The previous prime is 667670385323. The next prime is 667670385337. The reversal of 667670385325 is 523583076766.

It can be written as a sum of positive squares in 6 ways, for example, as 486908356 + 667183476969 = 22066^2 + 816813^2 .

It is not a de Polignac number, because 667670385325 - 2¹ = 667670385323 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 667670385325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667670385323) 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 in 11 ways as a sum of consecutive naturals, for example, 17620980 + ... + 17658829.

Almost surely, 2^667670385325 is an apocalyptic number.

It is an amenable number.

667670385325 is a deficient number, since it is larger than the sum of its proper divisors (161334590055).

667670385325 is a wasteful number, since it uses less digits than its factorization.

667670385325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35280576 (or 35280571 counting only the distinct ones).

The product of its (nonzero) digits is 38102400, while the sum is 58.

The spelling of 667670385325 in words is "six hundred sixty-seven billion, six hundred seventy million, three hundred eighty-five thousand, three hundred twenty-five".