1641711011 has 2 divisors, whose sum is σ = 1641711012. Its totient is φ = 1641711010.

The previous prime is 1641710969. The next prime is 1641711013. The reversal of 1641711011 is 1101171461.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1641711011 - 2¹⁴ = 1641694627 is a prime.

Together with 1641711013, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1641711013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 820855505 + 820855506.

It is an arithmetic number, because the mean of its divisors is an integer number (820855506).

Almost surely, 2^1641711011 is an apocalyptic number.

1641711011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1641711011 is an equidigital number, since it uses as much as digits as its factorization.

1641711011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 23.

The square root of 1641711011 is about 40518.0331580890. The cubic root of 1641711011 is about 1179.6836773004.

Adding to 1641711011 its reverse (1101171461), we get a palindrome (2742882472).

The spelling of 1641711011 in words is "one billion, six hundred forty-one million, seven hundred eleven thousand, eleven".