2164166311 has 4 divisors (see below), whose sum is σ = 2164899672. Its totient is φ = 2163432952.

The previous prime is 2164166309. The next prime is 2164166359. The reversal of 2164166311 is 1136614612.

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

It is a cyclic number.

It is not a de Polignac number, because 2164166311 - 2¹ = 2164166309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2164166111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 362236 + ... + 368161.

It is an arithmetic number, because the mean of its divisors is an integer number (541224918).

Almost surely, 2^2164166311 is an apocalyptic number.

2164166311 is a deficient number, since it is larger than the sum of its proper divisors (733361).

2164166311 is an equidigital number, since it uses as much as digits as its factorization.

2164166311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733360.

The product of its digits is 5184, while the sum is 31.

The square root of 2164166311 is about 46520.6009312004. The cubic root of 2164166311 is about 1293.4913954990.

The spelling of 2164166311 in words is "two billion, one hundred sixty-four million, one hundred sixty-six thousand, three hundred eleven".