666466084 has 12 divisors (see below), whose sum is σ = 1166886000. Its totient is φ = 333070088.

The previous prime is 666466067. The next prime is 666466093. The reversal of 666466084 is 480664666.

It is a super-2 number, since 2×666466084² = 888354082244590112, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31294 + ... + 48085.

It is an arithmetic number, because the mean of its divisors is an integer number (97240500).

Almost surely, 2^666466084 is an apocalyptic number.

It is an amenable number.

666466084 is a deficient number, since it is larger than the sum of its proper divisors (500419916).

666466084 is a wasteful number, since it uses less digits than its factorization.

666466084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81482 (or 81480 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 46.

The square root of 666466084 is about 25816.0044158658. The cubic root of 666466084 is about 873.4928433985.

The spelling of 666466084 in words is "six hundred sixty-six million, four hundred sixty-six thousand, eighty-four".