211664302424 has 8 divisors (see below), whose sum is σ = 396870567060. Its totient is φ = 105832151208.

The previous prime is 211664302387. The next prime is 211664302433. The reversal of 211664302424 is 424203466112.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13229018894 + ... + 13229018909.

Almost surely, 2^211664302424 is an apocalyptic number.

It is an amenable number.

211664302424 is a deficient number, since it is larger than the sum of its proper divisors (185206264636).

211664302424 is a wasteful number, since it uses less digits than its factorization.

211664302424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26458037809 (or 26458037805 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 35.

Adding to 211664302424 its reverse (424203466112), we get a palindrome (635867768536).

The spelling of 211664302424 in words is "two hundred eleven billion, six hundred sixty-four million, three hundred two thousand, four hundred twenty-four".