667670385286 has 16 divisors (see below), whose sum is σ = 1090568689200. Its totient is φ = 305359231968.

The previous prime is 667670385251. The next prime is 667670385307. The reversal of 667670385286 is 682583076766.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 302934645 + ... + 302936848.

It is an arithmetic number, because the mean of its divisors is an integer number (68160543075).

Almost surely, 2^667670385286 is an apocalyptic number.

667670385286 is a deficient number, since it is larger than the sum of its proper divisors (422898303914).

667670385286 is a wasteful number, since it uses less digits than its factorization.

667670385286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605871543.

The product of its (nonzero) digits is 121927680, while the sum is 64.

The spelling of 667670385286 in words is "six hundred sixty-seven billion, six hundred seventy million, three hundred eighty-five thousand, two hundred eighty-six".