616321304553133 has 2 divisors, whose sum is σ = 616321304553134. Its totient is φ = 616321304553132.

The previous prime is 616321304553103. The next prime is 616321304553139. The reversal of 616321304553133 is 331355403123616.

It is a happy number.

616321304553133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 528555641354244 + 87765663198889 = 22990338^2 + 9368333^2 .

It is a cyclic number.

It is not a de Polignac number, because 616321304553133 - 2³³ = 616312714618541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (616321304553139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308160652276566 + 308160652276567.

It is an arithmetic number, because the mean of its divisors is an integer number (308160652276567).

Almost surely, 2^{616321304553133} is an apocalyptic number.

It is an amenable number.

616321304553133 is a deficient number, since it is larger than the sum of its proper divisors (1).

616321304553133 is an equidigital number, since it uses as much as digits as its factorization.

616321304553133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1749600, while the sum is 46.

Adding to 616321304553133 its reverse (331355403123616), we get a palindrome (947676707676749).

The spelling of 616321304553133 in words is "six hundred sixteen trillion, three hundred twenty-one billion, three hundred four million, five hundred fifty-three thousand, one hundred thirty-three".