666537176482 has 8 divisors (see below), whose sum is σ = 999831883500. Its totient is φ = 333259881984.

The previous prime is 666537176449. The next prime is 666537176507. The reversal of 666537176482 is 284671735666.

It can be written as a sum of positive squares in 2 ways, for example, as 411379849321 + 255157327161 = 641389^2 + 505131^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 666537176482.

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, 4257007 + ... + 4410802.

Almost surely, 2^666537176482 is an apocalyptic number.

666537176482 is a deficient number, since it is larger than the sum of its proper divisors (333294707018).

666537176482 is a wasteful number, since it uses less digits than its factorization.

666537176482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8706260.

The product of its digits is 60963840, while the sum is 61.

The spelling of 666537176482 in words is "six hundred sixty-six billion, five hundred thirty-seven million, one hundred seventy-six thousand, four hundred eighty-two".