667672842658 has 8 divisors (see below), whose sum is σ = 1007506325952. Its totient is φ = 331837400676.

The previous prime is 667672842647. The next prime is 667672842701. The reversal of 667672842658 is 856248276766.

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

It is a junction number, because it is equal to n+sod(n) for n = 667672842593 and 667672842602.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 999509910 + ... + 999510577.

It is an arithmetic number, because the mean of its divisors is an integer number (125938290744).

Almost surely, 2^667672842658 is an apocalyptic number.

667672842658 is a deficient number, since it is larger than the sum of its proper divisors (339833483294).

667672842658 is a wasteful number, since it uses less digits than its factorization.

667672842658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1999020656.

The product of its digits is 325140480, while the sum is 67.

The spelling of 667672842658 in words is "six hundred sixty-seven billion, six hundred seventy-two million, eight hundred forty-two thousand, six hundred fifty-eight".