66452311133 has 16 divisors (see below), whose sum is σ = 73759899696. Its totient is φ = 59470225920.

The previous prime is 66452311129. The next prime is 66452311141. The reversal of 66452311133 is 33111325466.

It can be written as a sum of positive squares in 8 ways, for example, as 3612851449 + 62839459684 = 60107^2 + 250678^2 .

It is a cyclic number.

It is not a de Polignac number, because 66452311133 - 2² = 66452311129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66452311093 and 66452311102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66452311033) 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 15 ways as a sum of consecutive naturals, for example, 110666 + ... + 380987.

It is an arithmetic number, because the mean of its divisors is an integer number (4609993731).

Almost surely, 2^66452311133 is an apocalyptic number.

It is an amenable number.

66452311133 is a deficient number, since it is larger than the sum of its proper divisors (7307588563).

66452311133 is a wasteful number, since it uses less digits than its factorization.

66452311133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491984.

The product of its digits is 38880, while the sum is 35.

Adding to 66452311133 its reverse (33111325466), we get a palindrome (99563636599).

The spelling of 66452311133 in words is "sixty-six billion, four hundred fifty-two million, three hundred eleven thousand, one hundred thirty-three".