667172147112 has 48 divisors (see below), whose sum is σ = 1807881484500. Its totient is φ = 222272941056.

The previous prime is 667172147069. The next prime is 667172147143. The reversal of 667172147112 is 211741271766.

667172147112 is a `hidden beast` number, since 6 + 6 + 7 + 172 + 1 + 471 + 1 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 665748292356 + 1423854756 = 815934^2 + 37734^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2316687 + ... + 2588702.

Almost surely, 2^667172147112 is an apocalyptic number.

It is an amenable number.

667172147112 is an abundant number, since it is smaller than the sum of its proper divisors (1140709337388).

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

667172147112 is a wasteful number, since it uses less digits than its factorization.

667172147112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4907290 (or 4907283 counting only the distinct ones).

The product of its digits is 197568, while the sum is 45.

The spelling of 667172147112 in words is "six hundred sixty-seven billion, one hundred seventy-two million, one hundred forty-seven thousand, one hundred twelve".