211664324 has 12 divisors (see below), whose sum is σ = 370785324. Its totient is φ = 105725664.

The previous prime is 211664293. The next prime is 211664347. The reversal of 211664324 is 423466112.

It can be written as a sum of positive squares in 2 ways, for example, as 26214400 + 185449924 = 5120^2 + 13618^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22067 + ... + 30170.

It is an arithmetic number, because the mean of its divisors is an integer number (30898777).

Almost surely, 2^211664324 is an apocalyptic number.

It is an amenable number.

211664324 is a deficient number, since it is larger than the sum of its proper divisors (159121000).

211664324 is a wasteful number, since it uses less digits than its factorization.

211664324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53254 (or 53252 counting only the distinct ones).

The product of its digits is 6912, while the sum is 29.

The square root of 211664324 is about 14548.6880508175. The cubic root of 211664324 is about 595.9583210348.

The spelling of 211664324 in words is "two hundred eleven million, six hundred sixty-four thousand, three hundred twenty-four".