211751552018 has 16 divisors (see below), whose sum is σ = 317834487360. Its totient is φ = 105806752176.

The previous prime is 211751551997. The next prime is 211751552029. The reversal of 211751552018 is 810255157112.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31795973 + ... + 31802631.

It is an arithmetic number, because the mean of its divisors is an integer number (19864655460).

Almost surely, 2^211751552018 is an apocalyptic number.

211751552018 is a deficient number, since it is larger than the sum of its proper divisors (106082935342).

211751552018 is a wasteful number, since it uses less digits than its factorization.

211751552018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14641.

The product of its (nonzero) digits is 28000, while the sum is 38.

The spelling of 211751552018 in words is "two hundred eleven billion, seven hundred fifty-one million, five hundred fifty-two thousand, eighteen".