211050066 has 16 divisors (see below), whose sum is σ = 422848800. Its totient is φ = 70225248.

The previous prime is 211050031. The next prime is 211050071. The reversal of 211050066 is 660050112.

It is a happy number.

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, 27496 + ... + 34323.

It is an arithmetic number, because the mean of its divisors is an integer number (26428050).

Almost surely, 2^211050066 is an apocalyptic number.

211050066 is an abundant number, since it is smaller than the sum of its proper divisors (211798734).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211050066 is a wasteful number, since it uses less digits than its factorization.

211050066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62393.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 211050066 is about 14527.5622869083. The cubic root of 211050066 is about 595.3812644798.

The spelling of 211050066 in words is "two hundred eleven million, fifty thousand, sixty-six".