306644543066 has 8 divisors (see below), whose sum is σ = 487023686100. Its totient is φ = 144303314368.

The previous prime is 306644543059. The next prime is 306644543081. The reversal of 306644543066 is 660345446603.

It can be written as a sum of positive squares in 2 ways, for example, as 233027287441 + 73617255625 = 482729^2 + 271325^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 306644543066.

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 3 ways as a sum of consecutive naturals, for example, 4509478541 + ... + 4509478608.

Almost surely, 2^306644543066 is an apocalyptic number.

306644543066 is a deficient number, since it is larger than the sum of its proper divisors (180379143034).

306644543066 is a wasteful number, since it uses less digits than its factorization.

306644543066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9018957168.

The product of its (nonzero) digits is 3732480, while the sum is 47.

Adding to 306644543066 its reverse (660345446603), we get a palindrome (966989989669).

The spelling of 306644543066 in words is "three hundred six billion, six hundred forty-four million, five hundred forty-three thousand, sixty-six".