66440130301 has 2 divisors, whose sum is σ = 66440130302. Its totient is φ = 66440130300.

The previous prime is 66440130233. The next prime is 66440130319. The reversal of 66440130301 is 10303104466.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55182708100 + 11257422201 = 234910^2 + 106101^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66440130301 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66440130301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66440133301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33220065150 + 33220065151.

It is an arithmetic number, because the mean of its divisors is an integer number (33220065151).

Almost surely, 2^66440130301 is an apocalyptic number.

It is an amenable number.

66440130301 is a deficient number, since it is larger than the sum of its proper divisors (1).

66440130301 is an equidigital number, since it uses as much as digits as its factorization.

66440130301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 66440130301 its reverse (10303104466), we get a palindrome (76743234767).

The spelling of 66440130301 in words is "sixty-six billion, four hundred forty million, one hundred thirty thousand, three hundred one".