216241561004629 has 2 divisors, whose sum is σ = 216241561004630. Its totient is φ = 216241561004628.

The previous prime is 216241561004621. The next prime is 216241561004653. The reversal of 216241561004629 is 926400165142612.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 203426807751729 + 12814753252900 = 14262777^2 + 3579770^2 .

It is a cyclic number.

It is not a de Polignac number, because 216241561004629 - 2³ = 216241561004621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (216241561004621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108120780502314 + 108120780502315.

It is an arithmetic number, because the mean of its divisors is an integer number (108120780502315).

Almost surely, 2^{216241561004629} is an apocalyptic number.

It is an amenable number.

216241561004629 is a deficient number, since it is larger than the sum of its proper divisors (1).

216241561004629 is an equidigital number, since it uses as much as digits as its factorization.

216241561004629 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1244160, while the sum is 49.

The spelling of 216241561004629 in words is "two hundred sixteen trillion, two hundred forty-one billion, five hundred sixty-one million, four thousand, six hundred twenty-nine".