211443400553 has 16 divisors (see below), whose sum is σ = 263855560320. Its totient is φ = 164612457600.

The previous prime is 211443400541. The next prime is 211443400577. The reversal of 211443400553 is 355004344112.

211443400553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 211443400553 - 2¹² = 211443396457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211443450553) 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 15 ways as a sum of consecutive naturals, for example, 1152668 + ... + 1323453.

It is an arithmetic number, because the mean of its divisors is an integer number (16490972520).

Almost surely, 2^211443400553 is an apocalyptic number.

It is an amenable number.

211443400553 is a deficient number, since it is larger than the sum of its proper divisors (52412159767).

211443400553 is a wasteful number, since it uses less digits than its factorization.

211443400553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2477248.

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 211443400553 its reverse (355004344112), we get a palindrome (566447744665).

The spelling of 211443400553 in words is "two hundred eleven billion, four hundred forty-three million, four hundred thousand, five hundred fifty-three".