666337471204 has 24 divisors (see below), whose sum is σ = 1194666992568. Its totient is φ = 325005884160.

The previous prime is 666337471187. The next prime is 666337471243. The reversal of 666337471204 is 402174733666.

It can be written as a sum of positive squares in 4 ways, for example, as 14652618304 + 651684852900 = 121048^2 + 807270^2 .

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, 1252734 + ... + 1703530.

It is an arithmetic number, because the mean of its divisors is an integer number (49777791357).

Almost surely, 2^666337471204 is an apocalyptic number.

It is an amenable number.

666337471204 is a deficient number, since it is larger than the sum of its proper divisors (528329521364).

666337471204 is a wasteful number, since it uses less digits than its factorization.

666337471204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459855 (or 459853 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 49.

The spelling of 666337471204 in words is "six hundred sixty-six billion, three hundred thirty-seven million, four hundred seventy-one thousand, two hundred four".