66333566533366 has 16 divisors (see below), whose sum is σ = 108545968044288. Its totient is φ = 30151584513000.

The previous prime is 66333566533343. The next prime is 66333566533417.

It is a happy number.

66333566533366 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 66333566533298 and 66333566533307.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 26251471 + ... + 28667173.

It is an arithmetic number, because the mean of its divisors is an integer number (6784123002768).

Almost surely, 2^{66333566533366} is an apocalyptic number.

66333566533366 is a deficient number, since it is larger than the sum of its proper divisors (42212401510922).

66333566533366 is a wasteful number, since it uses less digits than its factorization.

66333566533366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3663867.

The product of its digits is 850305600, while the sum is 64.

The spelling of 66333566533366 in words is "sixty-six trillion, three hundred thirty-three billion, five hundred sixty-six million, five hundred thirty-three thousand, three hundred sixty-six".