65135522011211 has 4 divisors (see below), whose sum is σ = 65135597878032. Its totient is φ = 65135446144392.

The previous prime is 65135522011193. The next prime is 65135522011223. The reversal of 65135522011211 is 11211022553156.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65135522011211 - 2¹⁰ = 65135522010187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65135522011711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36630671 + ... + 38367656.

It is an arithmetic number, because the mean of its divisors is an integer number (16283899469508).

Almost surely, 2^{65135522011211} is an apocalyptic number.

65135522011211 is a deficient number, since it is larger than the sum of its proper divisors (75866821).

65135522011211 is an equidigital number, since it uses as much as digits as its factorization.

65135522011211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75866820.

The product of its (nonzero) digits is 18000, while the sum is 35.

Adding to 65135522011211 its reverse (11211022553156), we get a palindrome (76346544564367).

The spelling of 65135522011211 in words is "sixty-five trillion, one hundred thirty-five billion, five hundred twenty-two million, eleven thousand, two hundred eleven".