66356444465366 has 128 divisors (see below), whose sum is σ = 115518478344192. Its totient is φ = 28289885184000.

The previous prime is 66356444465351. The next prime is 66356444465411.

66356444465366 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 66356444465296 and 66356444465305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 30066353435 + ... + 30066355641.

It is an arithmetic number, because the mean of its divisors is an integer number (902488112064).

Almost surely, 2^{66356444465366} is an apocalyptic number.

66356444465366 is a deficient number, since it is larger than the sum of its proper divisors (49162033878826).

66356444465366 is a wasteful number, since it uses less digits than its factorization.

66356444465366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4878.

The product of its digits is 2687385600, while the sum is 68.

The spelling of 66356444465366 in words is "sixty-six trillion, three hundred fifty-six billion, four hundred forty-four million, four hundred sixty-five thousand, three hundred sixty-six".