65505605111 has 8 divisors (see below), whose sum is σ = 66240529920. Its totient is φ = 64774402048.

The previous prime is 65505605107. The next prime is 65505605171. The reversal of 65505605111 is 11150650556.

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 65505605111 - 2² = 65505605107 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 (65505605171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 895031 + ... + 965448.

It is an arithmetic number, because the mean of its divisors is an integer number (8280066240).

Almost surely, 2^65505605111 is an apocalyptic number.

65505605111 is a deficient number, since it is larger than the sum of its proper divisors (734924809).

65505605111 is a wasteful number, since it uses less digits than its factorization.

65505605111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1860873.

The product of its (nonzero) digits is 22500, while the sum is 35.

The spelling of 65505605111 in words is "sixty-five billion, five hundred five million, six hundred five thousand, one hundred eleven".