211604542052 has 12 divisors (see below), whose sum is σ = 370646755836. Its totient is φ = 105705468960.

The previous prime is 211604541997. The next prime is 211604542099. The reversal of 211604542052 is 250245406112.

211604542052 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 101363277376 + 110241264676 = 318376^2 + 332026^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24195599 + ... + 24204342.

It is an arithmetic number, because the mean of its divisors is an integer number (30887229653).

Almost surely, 2^211604542052 is an apocalyptic number.

It is an amenable number.

211604542052 is a deficient number, since it is larger than the sum of its proper divisors (159042213784).

211604542052 is a wasteful number, since it uses less digits than its factorization.

211604542052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48401038 (or 48401036 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

Adding to 211604542052 its reverse (250245406112), we get a palindrome (461849948164).

The spelling of 211604542052 in words is "two hundred eleven billion, six hundred four million, five hundred forty-two thousand, fifty-two".