211261635006 has 32 divisors (see below), whose sum is σ = 428518937088. Its totient is φ = 69421474080.

The previous prime is 211261634993. The next prime is 211261635029. The reversal of 211261635006 is 600536162112.

211261635006 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5409060 + ... + 5447976.

It is an arithmetic number, because the mean of its divisors is an integer number (13391216784).

Almost surely, 2^211261635006 is an apocalyptic number.

211261635006 is an abundant number, since it is smaller than the sum of its proper divisors (217257302082).

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

211261635006 is a wasteful number, since it uses less digits than its factorization.

211261635006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51736.

The product of its (nonzero) digits is 12960, while the sum is 33.

Adding to 211261635006 its reverse (600536162112), we get a palindrome (811797797118).

The spelling of 211261635006 in words is "two hundred eleven billion, two hundred sixty-one million, six hundred thirty-five thousand, six".