816402423311 has 2 divisors, whose sum is σ = 816402423312. Its totient is φ = 816402423310.

The previous prime is 816402423289. The next prime is 816402423341. The reversal of 816402423311 is 113324204618.

816402423311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 816402423311 - 2²⁶ = 816335314447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (816402423341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 408201211655 + 408201211656.

It is an arithmetic number, because the mean of its divisors is an integer number (408201211656).

Almost surely, 2^816402423311 is an apocalyptic number.

816402423311 is a deficient number, since it is larger than the sum of its proper divisors (1).

816402423311 is an equidigital number, since it uses as much as digits as its factorization.

816402423311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 35.

Adding to 816402423311 its reverse (113324204618), we get a palindrome (929726627929).

The spelling of 816402423311 in words is "eight hundred sixteen billion, four hundred two million, four hundred twenty-three thousand, three hundred eleven".