66243332633315 has 16 divisors (see below), whose sum is σ = 79938225108000. Its totient is φ = 52697197969152.

The previous prime is 66243332633299. The next prime is 66243332633327. The reversal of 66243332633315 is 51333623334266.

It is a cyclic number.

It is not a de Polignac number, because 66243332633315 - 2⁴ = 66243332633299 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33173279 + ... + 35113431.

It is an arithmetic number, because the mean of its divisors is an integer number (4996139069250).

Almost surely, 2^{66243332633315} is an apocalyptic number.

66243332633315 is a deficient number, since it is larger than the sum of its proper divisors (13694892474685).

66243332633315 is a wasteful number, since it uses less digits than its factorization.

66243332633315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1978486.

The product of its digits is 12597120, while the sum is 50.

The spelling of 66243332633315 in words is "sixty-six trillion, two hundred forty-three billion, three hundred thirty-two million, six hundred thirty-three thousand, three hundred fifteen".