72116711 has 2 divisors, whose sum is σ = 72116712. Its totient is φ = 72116710.

The previous prime is 72116699. The next prime is 72116741. The reversal of 72116711 is 11761127.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72116711 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72116741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36058355 + 36058356.

It is an arithmetic number, because the mean of its divisors is an integer number (36058356).

Almost surely, 2^72116711 is an apocalyptic number.

72116711 is a deficient number, since it is larger than the sum of its proper divisors (1).

72116711 is an equidigital number, since it uses as much as digits as its factorization.

72116711 is an evil number, because the sum of its binary digits is even.

The product of its digits is 588, while the sum is 26.

The square root of 72116711 is about 8492.1558511370. The cubic root of 72116711 is about 416.2414290606.

Adding to 72116711 its reverse (11761127), we get a palindrome (83877838).

It can be divided in two parts, 72116 and 711, that added together give a palindrome (72827).

The spelling of 72116711 in words is "seventy-two million, one hundred sixteen thousand, seven hundred eleven".