65705011 has 4 divisors (see below), whose sum is σ = 66536800. Its totient is φ = 64873224.

The previous prime is 65705009. The next prime is 65705047. The reversal of 65705011 is 11050756.

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

It is a cyclic number.

It is not a de Polignac number, because 65705011 - 2¹ = 65705009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65705911) 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, 415776 + ... + 415933.

It is an arithmetic number, because the mean of its divisors is an integer number (16634200).

Almost surely, 2^65705011 is an apocalyptic number.

65705011 is a deficient number, since it is larger than the sum of its proper divisors (831789).

65705011 is an equidigital number, since it uses as much as digits as its factorization.

65705011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831788.

The product of its (nonzero) digits is 1050, while the sum is 25.

The square root of 65705011 is about 8105.8627548214. The cubic root of 65705011 is about 403.5210213299.

Adding to 65705011 its reverse (11050756), we get a palindrome (76755767).

The spelling of 65705011 in words is "sixty-five million, seven hundred five thousand, eleven".