211280006650 has 48 divisors (see below), whose sum is σ = 424844192160. Its totient is φ = 77900097600.

The previous prime is 211280006633. The next prime is 211280006657. The reversal of 211280006650 is 56600082112.

It is not an unprimeable number, because it can be changed into a prime (211280006657) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2970256 + ... + 3040555.

It is an arithmetic number, because the mean of its divisors is an integer number (8850920670).

Almost surely, 2^211280006650 is an apocalyptic number.

211280006650 is an abundant number, since it is smaller than the sum of its proper divisors (213564185510).

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

211280006650 is a wasteful number, since it uses less digits than its factorization.

211280006650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6010879 (or 6010874 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

Adding to 211280006650 its reverse (56600082112), we get a palindrome (267880088762).

The spelling of 211280006650 in words is "two hundred eleven billion, two hundred eighty million, six thousand, six hundred fifty".