210268229680 has 20 divisors (see below), whose sum is σ = 488873634192. Its totient is φ = 84107291840.

The previous prime is 210268229663. The next prime is 210268229683. The reversal of 210268229680 is 86922862012.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×210268229680² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 210268229680.

It is not an unprimeable number, because it can be changed into a prime (210268229683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1314176356 + ... + 1314176515.

Almost surely, 2^210268229680 is an apocalyptic number.

210268229680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210268229680 is an abundant number, since it is smaller than the sum of its proper divisors (278605404512).

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

210268229680 is a wasteful number, since it uses less digits than its factorization.

210268229680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2628352884 (or 2628352878 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 46.

The spelling of 210268229680 in words is "two hundred ten billion, two hundred sixty-eight million, two hundred twenty-nine thousand, six hundred eighty".