66337528836868 has 6 divisors (see below), whose sum is σ = 116090675464526. Its totient is φ = 33168764418432.

The previous prime is 66337528836847. The next prime is 66337528836881. The reversal of 66337528836868 is 86863882573366.

66337528836868 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 66183073548804 + 154455288064 = 8135298^2 + 393008^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8292191104605 + ... + 8292191104612.

Almost surely, 2^{66337528836868} is an apocalyptic number.

It is an amenable number.

66337528836868 is a deficient number, since it is larger than the sum of its proper divisors (49753146627658).

66337528836868 is a wasteful number, since it uses less digits than its factorization.

66337528836868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16584382209221 (or 16584382209219 counting only the distinct ones).

The product of its digits is 10032906240, while the sum is 79.

The spelling of 66337528836868 in words is "sixty-six trillion, three hundred thirty-seven billion, five hundred twenty-eight million, eight hundred thirty-six thousand, eight hundred sixty-eight".