66053636353 has 12 divisors (see below), whose sum is σ = 68283148500. Its totient is φ = 63894764640.

The previous prime is 66053636351. The next prime is 66053636437. The reversal of 66053636353 is 35363635066.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 25113374784 + 40940261569 = 158472^2 + 202337^2 .

It is not a de Polignac number, because 66053636353 - 2¹ = 66053636351 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66053636351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2366523 + ... + 2394271.

It is an arithmetic number, because the mean of its divisors is an integer number (5690262375).

Almost surely, 2^66053636353 is an apocalyptic number.

It is an amenable number.

66053636353 is a deficient number, since it is larger than the sum of its proper divisors (2229512147).

66053636353 is a wasteful number, since it uses less digits than its factorization.

66053636353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30288 (or 30257 counting only the distinct ones).

The product of its (nonzero) digits is 2624400, while the sum is 46.

The spelling of 66053636353 in words is "sixty-six billion, fifty-three million, six hundred thirty-six thousand, three hundred fifty-three".