66832963070449 has 9 divisors (see below), whose sum is σ = 69865278937419. Its totient is φ = 63927002214240.

The previous prime is 66832963070441. The next prime is 66832963070473. The reversal of 66832963070449 is 94407036923866.

The square root of 66832963070449 is 8175143.

It is a perfect power (a square), and thus also a powerful number.

66832963070449 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., 66663844732849 + 169118337600 = 8164793^2 + 411240^2 .

It is not a de Polignac number, because 66832963070449 - 2³ = 66832963070441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66832963070441) by changing a digit.

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 in 8 ways as a sum of consecutive naturals, for example, 187850569 + ... + 188206009.

Almost surely, 2^{66832963070449} is an apocalyptic number.

66832963070449 is the 8175143-rd square number.

66832963070449 is the 4087572-nd centered octagonal number.

It is an amenable number.

66832963070449 is a deficient number, since it is larger than the sum of its proper divisors (3032315866970).

66832963070449 is an frugal number, since it uses more digits than its factorization.

66832963070449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710928 (or 355464 counting only the distinct ones).

The product of its (nonzero) digits is 282175488, while the sum is 67.

The spelling of 66832963070449 in words is "sixty-six trillion, eight hundred thirty-two billion, nine hundred sixty-three million, seventy thousand, four hundred forty-nine".