667256325109 has 8 divisors (see below), whose sum is σ = 730001714400. Its totient is φ = 604858556400.

The previous prime is 667256325013. The next prime is 667256325161. The reversal of 667256325109 is 901523652766.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 667256325109 - 2⁹ = 667256324597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667256325709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86901127 + ... + 86908804.

It is an arithmetic number, because the mean of its divisors is an integer number (91250214300).

Almost surely, 2^667256325109 is an apocalyptic number.

It is an amenable number.

667256325109 is a deficient number, since it is larger than the sum of its proper divisors (62745389291).

667256325109 is a wasteful number, since it uses less digits than its factorization.

667256325109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173810291.

The product of its (nonzero) digits is 4082400, while the sum is 52.

The spelling of 667256325109 in words is "six hundred sixty-seven billion, two hundred fifty-six million, three hundred twenty-five thousand, one hundred nine".