211404063343601 has 12 divisors (see below), whose sum is σ = 212988990152988. Its totient is φ = 209830844648832.

The previous prime is 211404063343591. The next prime is 211404063343609. The reversal of 211404063343601 is 106343360404112.

It can be written as a sum of positive squares in 6 ways, for example, as 3831320805376 + 207572742538225 = 1957376^2 + 14407385^2 .

It is a de Polignac number, because none of the positive numbers 2^k-211404063343601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211404063343609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 130521815 + ... + 132131571.

It is an arithmetic number, because the mean of its divisors is an integer number (17749082512749).

Almost surely, 2^{211404063343601} is an apocalyptic number.

It is an amenable number.

211404063343601 is a deficient number, since it is larger than the sum of its proper divisors (1584926809387).

211404063343601 is an equidigital number, since it uses as much as digits as its factorization.

211404063343601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1617028 (or 1616891 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 38.

The spelling of 211404063343601 in words is "two hundred eleven trillion, four hundred four billion, sixty-three million, three hundred forty-three thousand, six hundred one".