66300806353 has 2 divisors, whose sum is σ = 66300806354. Its totient is φ = 66300806352.

The previous prime is 66300806339. The next prime is 66300806357. The reversal of 66300806353 is 35360800366.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50747473984 + 15553332369 = 225272^2 + 124713^2 .

It is a cyclic number.

It is not a de Polignac number, because 66300806353 - 2⁵ = 66300806321 is a prime.

It is not a weakly prime, because it can be changed into another prime (66300806357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33150403176 + 33150403177.

It is an arithmetic number, because the mean of its divisors is an integer number (33150403177).

Almost surely, 2^66300806353 is an apocalyptic number.

It is an amenable number.

66300806353 is a deficient number, since it is larger than the sum of its proper divisors (1).

66300806353 is an equidigital number, since it uses as much as digits as its factorization.

66300806353 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 233280, while the sum is 40.

The spelling of 66300806353 in words is "sixty-six billion, three hundred million, eight hundred six thousand, three hundred fifty-three".