65675171115511 has 2 divisors, whose sum is σ = 65675171115512. Its totient is φ = 65675171115510.

The previous prime is 65675171115509. The next prime is 65675171115599. The reversal of 65675171115511 is 11551117157656.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65675171115511 - 2¹ = 65675171115509 is a prime.

It is a super-2 number, since 2×65675171115511² (a number of 28 digits) contains 22 as substring.

Together with 65675171115509, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65675171115011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32837585557755 + 32837585557756.

It is an arithmetic number, because the mean of its divisors is an integer number (32837585557756).

Almost surely, 2^{65675171115511} is an apocalyptic number.

65675171115511 is a deficient number, since it is larger than the sum of its proper divisors (1).

65675171115511 is an equidigital number, since it uses as much as digits as its factorization.

65675171115511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1102500, while the sum is 52.

The spelling of 65675171115511 in words is "sixty-five trillion, six hundred seventy-five billion, one hundred seventy-one million, one hundred fifteen thousand, five hundred eleven".