43164535385611 has 2 divisors, whose sum is σ = 43164535385612. Its totient is φ = 43164535385610.

The previous prime is 43164535385567. The next prime is 43164535385623. The reversal of 43164535385611 is 11658353546134.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43164535385611 - 2²³ = 43164526997003 is a prime.

It is not a weakly prime, because it can be changed into another prime (43164535355611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21582267692805 + 21582267692806.

It is an arithmetic number, because the mean of its divisors is an integer number (21582267692806).

Almost surely, 2^{43164535385611} is an apocalyptic number.

43164535385611 is a deficient number, since it is larger than the sum of its proper divisors (1).

43164535385611 is an equidigital number, since it uses as much as digits as its factorization.

43164535385611 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552000, while the sum is 55.

The spelling of 43164535385611 in words is "forty-three trillion, one hundred sixty-four billion, five hundred thirty-five million, three hundred eighty-five thousand, six hundred eleven".