211155161713 has 2 divisors, whose sum is σ = 211155161714. Its totient is φ = 211155161712.

The previous prime is 211155161681. The next prime is 211155161729. The reversal of 211155161713 is 317161551112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 185509381264 + 25645780449 = 430708^2 + 160143^2 .

It is a cyclic number.

It is not a de Polignac number, because 211155161713 - 2⁵ = 211155161681 is a prime.

It is not a weakly prime, because it can be changed into another prime (211155161753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105577580856 + 105577580857.

It is an arithmetic number, because the mean of its divisors is an integer number (105577580857).

Almost surely, 2^211155161713 is an apocalyptic number.

It is an amenable number.

211155161713 is a deficient number, since it is larger than the sum of its proper divisors (1).

211155161713 is an equidigital number, since it uses as much as digits as its factorization.

211155161713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6300, while the sum is 34.

The spelling of 211155161713 in words is "two hundred eleven billion, one hundred fifty-five million, one hundred sixty-one thousand, seven hundred thirteen".