66160350645331 has 2 divisors, whose sum is σ = 66160350645332. Its totient is φ = 66160350645330.

The previous prime is 66160350645299. The next prime is 66160350645349. The reversal of 66160350645331 is 13354605306166.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66160350645331 - 2⁵ = 66160350645299 is a prime.

It is a super-2 number, since 2×66160350645331² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (66160350645131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33080175322665 + 33080175322666.

It is an arithmetic number, because the mean of its divisors is an integer number (33080175322666).

Almost surely, 2^{66160350645331} is an apocalyptic number.

66160350645331 is a deficient number, since it is larger than the sum of its proper divisors (1).

66160350645331 is an equidigital number, since it uses as much as digits as its factorization.

66160350645331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3499200, while the sum is 49.

The spelling of 66160350645331 in words is "sixty-six trillion, one hundred sixty billion, three hundred fifty million, six hundred forty-five thousand, three hundred thirty-one".