65106505111 has 4 divisors (see below), whose sum is σ = 65110232224. Its totient is φ = 65102778000.

The previous prime is 65106505091. The next prime is 65106505141. The reversal of 65106505111 is 11150560156.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65106505111 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 (65106505141) 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, 1837230 + ... + 1872331.

It is an arithmetic number, because the mean of its divisors is an integer number (16277558056).

Almost surely, 2^65106505111 is an apocalyptic number.

65106505111 is a deficient number, since it is larger than the sum of its proper divisors (3727113).

65106505111 is a wasteful number, since it uses less digits than its factorization.

65106505111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3727112.

The product of its (nonzero) digits is 4500, while the sum is 31.

The spelling of 65106505111 in words is "sixty-five billion, one hundred six million, five hundred five thousand, one hundred eleven".