211041445602551 has 32 divisors (see below), whose sum is σ = 230913115251840. Its totient is φ = 192065168756736.

The previous prime is 211041445602541. The next prime is 211041445602557. The reversal of 211041445602551 is 155206544140112.

It is a cyclic number.

It is not a de Polignac number, because 211041445602551 - 2³⁴ = 211024265733367 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211041445602499 and 211041445602508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211041445602557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 560005955 + ... + 560382683.

It is an arithmetic number, because the mean of its divisors is an integer number (7216034851620).

Almost surely, 2^{211041445602551} is an apocalyptic number.

211041445602551 is a deficient number, since it is larger than the sum of its proper divisors (19871669649289).

211041445602551 is a wasteful number, since it uses less digits than its factorization.

211041445602551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382283.

The product of its (nonzero) digits is 192000, while the sum is 41.

Adding to 211041445602551 its reverse (155206544140112), we get a palindrome (366247989742663).

The spelling of 211041445602551 in words is "two hundred eleven trillion, forty-one billion, four hundred forty-five million, six hundred two thousand, five hundred fifty-one".