211506206004512 has 24 divisors (see below), whose sum is σ = 416496396001392. Its totient is φ = 105729343528000.

The previous prime is 211506206004491. The next prime is 211506206004551. The reversal of 211506206004512 is 215400602605112.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 742338914 + ... + 742623777.

It is an arithmetic number, because the mean of its divisors is an integer number (17354016500058).

Almost surely, 2^{211506206004512} is an apocalyptic number.

It is an amenable number.

211506206004512 is a deficient number, since it is larger than the sum of its proper divisors (204990189996880).

211506206004512 is a wasteful number, since it uses less digits than its factorization.

211506206004512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1484967152 (or 1484967144 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 35.

Adding to 211506206004512 its reverse (215400602605112), we get a palindrome (426906808609624).

The spelling of 211506206004512 in words is "two hundred eleven trillion, five hundred six billion, two hundred six million, four thousand, five hundred twelve".