216617073011 has 2 divisors, whose sum is σ = 216617073012. Its totient is φ = 216617073010.

The previous prime is 216617072939. The next prime is 216617073017. The reversal of 216617073011 is 110370716612.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 216617073011 - 2²² = 216612878707 is a prime.

It is a super-2 number, since 2×216617073011² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (216617073017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108308536505 + 108308536506.

It is an arithmetic number, because the mean of its divisors is an integer number (108308536506).

Almost surely, 2^216617073011 is an apocalyptic number.

216617073011 is a deficient number, since it is larger than the sum of its proper divisors (1).

216617073011 is an equidigital number, since it uses as much as digits as its factorization.

216617073011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10584, while the sum is 35.

Adding to 216617073011 its reverse (110370716612), we get a palindrome (326987789623).

The spelling of 216617073011 in words is "two hundred sixteen billion, six hundred seventeen million, seventy-three thousand, eleven".