211545620214 has 16 divisors (see below), whose sum is σ = 423095762880. Its totient is φ = 70514453000.

The previous prime is 211545620179. The next prime is 211545620267. The reversal of 211545620214 is 412026545112.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 933589 + ... + 1137839.

It is an arithmetic number, because the mean of its divisors is an integer number (26443485180).

Almost surely, 2^211545620214 is an apocalyptic number.

211545620214 is an abundant number, since it is smaller than the sum of its proper divisors (211550142666).

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

211545620214 is a wasteful number, since it uses less digits than its factorization.

211545620214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376875.

The product of its (nonzero) digits is 19200, while the sum is 33.

The spelling of 211545620214 in words is "two hundred eleven billion, five hundred forty-five million, six hundred twenty thousand, two hundred fourteen".