211160561612 has 96 divisors (see below), whose sum is σ = 496654717440. Its totient is φ = 75865144320.

The previous prime is 211160561593. The next prime is 211160561621. The reversal of 211160561612 is 216165061112.

211160561612 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 31 ways as a sum of consecutive naturals, for example, 4013903 + ... + 4066169.

It is an arithmetic number, because the mean of its divisors is an integer number (5173486640).

Almost surely, 2^211160561612 is an apocalyptic number.

211160561612 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211160561612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248327358720).

211160561612 is an abundant number, since it is smaller than the sum of its proper divisors (285494155828).

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

211160561612 is a wasteful number, since it uses less digits than its factorization.

211160561612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53311 (or 53309 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 32.

The spelling of 211160561612 in words is "two hundred eleven billion, one hundred sixty million, five hundred sixty-one thousand, six hundred twelve".