66333261330325 has 18 divisors (see below), whose sum is σ = 90410590571042. Its totient is φ = 48242371874400.

The previous prime is 66333261330313. The next prime is 66333261330383. The reversal of 66333261330325 is 52303316233366.

It can be written as a sum of positive squares in 3 ways, for example, as 790004547684 + 65543256782641 = 888822^2 + 8095879^2 .

It is not a de Polignac number, because 66333261330325 - 2⁹ = 66333261329813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 10964172402 + ... + 10964178451.

Almost surely, 2^{66333261330325} is an apocalyptic number.

It is an amenable number.

66333261330325 is a deficient number, since it is larger than the sum of its proper divisors (24077329240717).

66333261330325 is a wasteful number, since it uses less digits than its factorization.

66333261330325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21928350885 (or 21928350869 counting only the distinct ones).

The product of its (nonzero) digits is 3149280, while the sum is 46.

The spelling of 66333261330325 in words is "sixty-six trillion, three hundred thirty-three billion, two hundred sixty-one million, three hundred thirty thousand, three hundred twenty-five".