65160661611 has 4 divisors (see below), whose sum is σ = 86880882152. Its totient is φ = 43440441072.

The previous prime is 65160661603. The next prime is 65160661613. The reversal of 65160661611 is 11616606156.

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

It is not a de Polignac number, because 65160661611 - 2³ = 65160661603 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 65160661611.

It is not an unprimeable number, because it can be changed into a prime (65160661613) 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, 10860110266 + ... + 10860110271.

It is an arithmetic number, because the mean of its divisors is an integer number (21720220538).

Almost surely, 2^65160661611 is an apocalyptic number.

65160661611 is a deficient number, since it is larger than the sum of its proper divisors (21720220541).

65160661611 is a wasteful number, since it uses less digits than its factorization.

65160661611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21720220540.

The product of its (nonzero) digits is 38880, while the sum is 39.

The spelling of 65160661611 in words is "sixty-five billion, one hundred sixty million, six hundred sixty-one thousand, six hundred eleven".