65011611611 has 8 divisors (see below), whose sum is σ = 68540048400. Its totient is φ = 61493852160.

The previous prime is 65011611601. The next prime is 65011611659. The reversal of 65011611611 is 11611611056.

It is a happy number.

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 65011611611 - 2¹⁴ = 65011595227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65011611601) 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, 2656826 + ... + 2681183.

It is an arithmetic number, because the mean of its divisors is an integer number (8567506050).

Almost surely, 2^65011611611 is an apocalyptic number.

65011611611 is a deficient number, since it is larger than the sum of its proper divisors (3528436789).

65011611611 is a wasteful number, since it uses less digits than its factorization.

65011611611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5338669.

The product of its (nonzero) digits is 1080, while the sum is 29.

The spelling of 65011611611 in words is "sixty-five billion, eleven million, six hundred eleven thousand, six hundred eleven".