211168401424 has 20 divisors (see below), whose sum is σ = 433205765244. Its totient is φ = 99373365248.

The previous prime is 211168401419. The next prime is 211168401443. The reversal of 211168401424 is 424104861112.

It can be written as a sum of positive squares in 2 ways, for example, as 59551617024 + 151616784400 = 244032^2 + 389380^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a self number, because there is not a number n which added to its sum of digits gives 211168401424.

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, 388176937 + ... + 388177480.

Almost surely, 2^211168401424 is an apocalyptic number.

It is an amenable number.

211168401424 is an abundant number, since it is smaller than the sum of its proper divisors (222037363820).

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

211168401424 is a wasteful number, since it uses less digits than its factorization.

211168401424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 776354442 (or 776354436 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 34.

The spelling of 211168401424 in words is "two hundred eleven billion, one hundred sixty-eight million, four hundred one thousand, four hundred twenty-four".