65220011611711 has 8 divisors (see below), whose sum is σ = 72151203627648. Its totient is φ = 58455836271000.

The previous prime is 65220011611673. The next prime is 65220011611717. The reversal of 65220011611711 is 11711611002256.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65220011611711 - 2³⁷ = 65082572658239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65220011611717) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41754167985 + ... + 41754169546.

It is an arithmetic number, because the mean of its divisors is an integer number (9018900453456).

Almost surely, 2^{65220011611711} is an apocalyptic number.

65220011611711 is a deficient number, since it is larger than the sum of its proper divisors (6931192015937).

65220011611711 is a wasteful number, since it uses less digits than its factorization.

65220011611711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83508337613.

The product of its (nonzero) digits is 5040, while the sum is 34.

Adding to 65220011611711 its reverse (11711611002256), we get a palindrome (76931622613967).

The spelling of 65220011611711 in words is "sixty-five trillion, two hundred twenty billion, eleven million, six hundred eleven thousand, seven hundred eleven".