211010672256 has 64 divisors (see below), whose sum is σ = 561048184800. Its totient is φ = 70267735040.

The previous prime is 211010672231. The next prime is 211010672293. The reversal of 211010672256 is 652276010112.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121666 + ... + 660926.

Almost surely, 2^211010672256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211010672256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (280524092400).

211010672256 is an abundant number, since it is smaller than the sum of its proper divisors (350037512544).

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

211010672256 is a wasteful number, since it uses less digits than its factorization.

211010672256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540297 (or 540285 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 33.

Adding to 211010672256 its reverse (652276010112), we get a palindrome (863286682368).

The spelling of 211010672256 in words is "two hundred eleven billion, ten million, six hundred seventy-two thousand, two hundred fifty-six".