666852490118 has 16 divisors (see below), whose sum is σ = 1001744933184. Its totient is φ = 332937783360.

The previous prime is 666852490093. The next prime is 666852490127. The reversal of 666852490118 is 811094258666.

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 7 ways as a sum of consecutive naturals, for example, 4993796 + ... + 5125592.

It is an arithmetic number, because the mean of its divisors is an integer number (62609058324).

Almost surely, 2^666852490118 is an apocalyptic number.

666852490118 is a deficient number, since it is larger than the sum of its proper divisors (334892443066).

666852490118 is a wasteful number, since it uses less digits than its factorization.

666852490118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135487.

The product of its (nonzero) digits is 4976640, while the sum is 56.

The spelling of 666852490118 in words is "six hundred sixty-six billion, eight hundred fifty-two million, four hundred ninety thousand, one hundred eighteen".