667668141185 has 8 divisors (see below), whose sum is σ = 804393809856. Its totient is φ = 532006486000.

The previous prime is 667668141181. The next prime is 667668141229. The reversal of 667668141185 is 581141866766.

It is a happy number.

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

It is not a de Polignac number, because 667668141185 - 2² = 667668141181 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (667668141181) 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 7 ways as a sum of consecutive naturals, for example, 266001989 + ... + 266004498.

It is an arithmetic number, because the mean of its divisors is an integer number (100549226232).

Almost surely, 2^667668141185 is an apocalyptic number.

It is an amenable number.

667668141185 is a deficient number, since it is larger than the sum of its proper divisors (136725668671).

667668141185 is a wasteful number, since it uses less digits than its factorization.

667668141185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532006743.

The product of its digits is 11612160, while the sum is 59.

The spelling of 667668141185 in words is "six hundred sixty-seven billion, six hundred sixty-eight million, one hundred forty-one thousand, one hundred eighty-five".