666032606918 has 16 divisors (see below), whose sum is σ = 1165071616800. Its totient is φ = 285442545528.

The previous prime is 666032606891. The next prime is 666032606929. The reversal of 666032606918 is 819606230666.

It is a self number, because there is not a number n which added to its sum of digits gives 666032606918.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 485445821 + ... + 485447192.

It is an arithmetic number, because the mean of its divisors is an integer number (72816976050).

Almost surely, 2^666032606918 is an apocalyptic number.

666032606918 is a deficient number, since it is larger than the sum of its proper divisors (499039009882).

666032606918 is an equidigital number, since it uses as much as digits as its factorization.

666032606918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970893036 (or 970893022 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 53.

The spelling of 666032606918 in words is "six hundred sixty-six billion, thirty-two million, six hundred six thousand, nine hundred eighteen".