666334016004 has 24 divisors (see below), whose sum is σ = 1554793904160. Its totient is φ = 222109262464.

The previous prime is 666334015951. The next prime is 666334016017. The reversal of 666334016004 is 400610433666.

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, 1625212 + ... + 1993484.

It is an arithmetic number, because the mean of its divisors is an integer number (64783079340).

Almost surely, 2^666334016004 is an apocalyptic number.

It is an amenable number.

666334016004 is an abundant number, since it is smaller than the sum of its proper divisors (888459888156).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

666334016004 is a wasteful number, since it uses less digits than its factorization.

666334016004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519059 (or 519057 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 39.

The spelling of 666334016004 in words is "six hundred sixty-six billion, three hundred thirty-four million, sixteen thousand, four".