211161160011 has 4 divisors (see below), whose sum is σ = 281548213352. Its totient is φ = 140774106672.

The previous prime is 211161159971. The next prime is 211161160027. The reversal of 211161160011 is 110061161112.

211161160011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 211161160011 - 2¹³ = 211161151819 is a prime.

It is a super-2 number, since 2×211161160011² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 211161160011.

It is not an unprimeable number, because it can be changed into a prime (211161160031) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 35193526666 + ... + 35193526671.

It is an arithmetic number, because the mean of its divisors is an integer number (70387053338).

Almost surely, 2^211161160011 is an apocalyptic number.

211161160011 is a deficient number, since it is larger than the sum of its proper divisors (70387053341).

211161160011 is an equidigital number, since it uses as much as digits as its factorization.

211161160011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70387053340.

The product of its (nonzero) digits is 72, while the sum is 21.

The spelling of 211161160011 in words is "two hundred eleven billion, one hundred sixty-one million, one hundred sixty thousand, eleven".