667670385246 has 32 divisors (see below), whose sum is σ = 1341739069440. Its totient is φ = 221491023264.

The previous prime is 667670385227. The next prime is 667670385251. The reversal of 667670385246 is 642583076766.

It is a self number, because there is not a number n which added to its sum of digits gives 667670385246.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 4398300 + ... + 4547568.

It is an arithmetic number, because the mean of its divisors is an integer number (41929345920).

Almost surely, 2^667670385246 is an apocalyptic number.

667670385246 is an abundant number, since it is smaller than the sum of its proper divisors (674068684194).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

667670385246 is a wasteful number, since it uses less digits than its factorization.

667670385246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152840.

The product of its (nonzero) digits is 60963840, while the sum is 60.

The spelling of 667670385246 in words is "six hundred sixty-seven billion, six hundred seventy million, three hundred eighty-five thousand, two hundred forty-six".