71816011 has 2 divisors, whose sum is σ = 71816012. Its totient is φ = 71816010.

The previous prime is 71816009. The next prime is 71816023. The reversal of 71816011 is 11061817.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 71816011 - 2¹ = 71816009 is a prime.

Together with 71816009, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (71816711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35908005 + 35908006.

It is an arithmetic number, because the mean of its divisors is an integer number (35908006).

Almost surely, 2^71816011 is an apocalyptic number.

71816011 is a deficient number, since it is larger than the sum of its proper divisors (1).

71816011 is an equidigital number, since it uses as much as digits as its factorization.

71816011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 25.

The square root of 71816011 is about 8474.4327833785. The cubic root of 71816011 is about 415.6620988687.

Adding to 71816011 its reverse (11061817), we get a palindrome (82877828).

The spelling of 71816011 in words is "seventy-one million, eight hundred sixteen thousand, eleven".