212550316505 has 16 divisors (see below), whose sum is σ = 255530044224. Its totient is φ = 169727440320.

The previous prime is 212550316499. The next prime is 212550316529. The reversal of 212550316505 is 505613055212.

It is not a de Polignac number, because 212550316505 - 2¹⁸ = 212550054361 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6075794 + ... + 6110676.

It is an arithmetic number, because the mean of its divisors is an integer number (15970627764).

Almost surely, 2^212550316505 is an apocalyptic number.

It is an amenable number.

212550316505 is a deficient number, since it is larger than the sum of its proper divisors (42979727719).

212550316505 is a wasteful number, since it uses less digits than its factorization.

212550316505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37096.

The product of its (nonzero) digits is 45000, while the sum is 35.

The spelling of 212550316505 in words is "two hundred twelve billion, five hundred fifty million, three hundred sixteen thousand, five hundred five".