666094293316 has 81 divisors (see below), whose sum is σ = 1232535504837. Its totient is φ = 314967064320.

The previous prime is 666094293247. The next prime is 666094293331. The reversal of 666094293316 is 613392490666.

The square root of 666094293316 is 816146.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 13 ways, for example, as 651136024900 + 14958268416 = 806930^2 + 122304^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2476186830 + ... + 2476187098.

Almost surely, 2^666094293316 is an apocalyptic number.

666094293316 is the 816146-th square number.

It is an amenable number.

666094293316 is a deficient number, since it is larger than the sum of its proper divisors (566441211521).

666094293316 is an equidigital number, since it uses as much as digits as its factorization.

666094293316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698 (or 349 counting only the distinct ones).

The product of its (nonzero) digits is 7558272, while the sum is 55.

The spelling of 666094293316 in words is "six hundred sixty-six billion, ninety-four million, two hundred ninety-three thousand, three hundred sixteen".