66266030666 has 24 divisors (see below), whose sum is σ = 109300551780. Its totient is φ = 30108862080.

The previous prime is 66266030627. The next prime is 66266030681. The reversal of 66266030666 is 66603066266.

It can be written as a sum of positive squares in 2 ways, for example, as 61556091025 + 4709939641 = 248105^2 + 68629^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 66266030666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 565250 + ... + 672338.

Almost surely, 2^66266030666 is an apocalyptic number.

66266030666 is a deficient number, since it is larger than the sum of its proper divisors (43034521114).

66266030666 is a wasteful number, since it uses less digits than its factorization.

66266030666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109670 (or 109659 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 47.

The spelling of 66266030666 in words is "sixty-six billion, two hundred sixty-six million, thirty thousand, six hundred sixty-six".