666210888170 has 64 divisors (see below), whose sum is σ = 1274277083904. Its totient is φ = 250237278720.

The previous prime is 666210888149. The next prime is 666210888179. The reversal of 666210888170 is 71888012666.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (666210888179) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7292294 + ... + 7383086.

It is an arithmetic number, because the mean of its divisors is an integer number (19910579436).

Almost surely, 2^666210888170 is an apocalyptic number.

666210888170 is a deficient number, since it is larger than the sum of its proper divisors (608066195734).

666210888170 is a wasteful number, since it uses less digits than its factorization.

666210888170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91407.

The product of its (nonzero) digits is 1548288, while the sum is 53.

The spelling of 666210888170 in words is "six hundred sixty-six billion, two hundred ten million, eight hundred eighty-eight thousand, one hundred seventy".