211663234304 has 18 divisors (see below), whose sum is σ = 422499659610. Its totient is φ = 105831617024.

The previous prime is 211663234301. The next prime is 211663234327. The reversal of 211663234304 is 403432366112.

It can be written as a sum of positive squares in only one way, i.e., 211600000000 + 63234304 = 460000^2 + 7952^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211663234301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 413404499 + ... + 413405010.

Almost surely, 2^211663234304 is an apocalyptic number.

It is an amenable number.

211663234304 is a deficient number, since it is larger than the sum of its proper divisors (210836425306).

211663234304 is an frugal number, since it uses more digits than its factorization.

211663234304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826809525 (or 826809511 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 35.

It can be divided in two parts, 2116 and 63234304, that multiplied together give a square (133803787264 = 365792²).

The spelling of 211663234304 in words is "two hundred eleven billion, six hundred sixty-three million, two hundred thirty-four thousand, three hundred four".