211552404104543 has 8 divisors (see below), whose sum is σ = 220768309960416. Its totient is φ = 202337996185600.

The previous prime is 211552404104513. The next prime is 211552404104581. The reversal of 211552404104543 is 345401404255112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 211552404104543 - 2⁸ = 211552404104287 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 211552404104543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211552404104513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 374195618 + ... + 374760543.

It is an arithmetic number, because the mean of its divisors is an integer number (27596038745052).

Almost surely, 2^{211552404104543} is an apocalyptic number.

211552404104543 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

211552404104543 is a deficient number, since it is larger than the sum of its proper divisors (9215905855873).

211552404104543 is a wasteful number, since it uses less digits than its factorization.

211552404104543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748968465.

The product of its (nonzero) digits is 384000, while the sum is 41.

Adding to 211552404104543 its reverse (345401404255112), we get a palindrome (556953808359655).

The spelling of 211552404104543 in words is "two hundred eleven trillion, five hundred fifty-two billion, four hundred four million, one hundred four thousand, five hundred forty-three".