211230858066 has 16 divisors (see below), whose sum is σ = 422478850464. Its totient is φ = 70407430304.

The previous prime is 211230858061. The next prime is 211230858067. The reversal of 211230858066 is 660858032112.

211230858066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (211230858061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 550800 + ... + 851963.

It is an arithmetic number, because the mean of its divisors is an integer number (26404928154).

Almost surely, 2^211230858066 is an apocalyptic number.

211230858066 is an abundant number, since it is smaller than the sum of its proper divisors (211247992398).

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

211230858066 is a wasteful number, since it uses less digits than its factorization.

211230858066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1427865.

The product of its (nonzero) digits is 138240, while the sum is 42.

The spelling of 211230858066 in words is "two hundred eleven billion, two hundred thirty million, eight hundred fifty-eight thousand, sixty-six".