211051241043550 has 72 divisors (see below), whose sum is σ = 399144495695400. Its totient is φ = 83026492732800.

The previous prime is 211051241043541. The next prime is 211051241043563. The reversal of 211051241043550 is 55340142150112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1640710636 + ... + 1640839264.

It is an arithmetic number, because the mean of its divisors is an integer number (5543673551325).

Almost surely, 2^{211051241043550} is an apocalyptic number.

211051241043550 is a deficient number, since it is larger than the sum of its proper divisors (188093254651850).

211051241043550 is a wasteful number, since it uses less digits than its factorization.

211051241043550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137582 (or 137516 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 34.

Adding to 211051241043550 its reverse (55340142150112), we get a palindrome (266391383193662).

The spelling of 211051241043550 in words is "two hundred eleven trillion, fifty-one billion, two hundred forty-one million, forty-three thousand, five hundred fifty".