4065645011 has 4 divisors (see below), whose sum is σ = 4105899024. Its totient is φ = 4025391000.

The previous prime is 4065644977. The next prime is 4065645029. The reversal of 4065645011 is 1105465604.

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 4065645011 - 2¹⁴ = 4065628627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4065645511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20126855 + ... + 20127056.

It is an arithmetic number, because the mean of its divisors is an integer number (1026474756).

Almost surely, 2^4065645011 is an apocalyptic number.

4065645011 is a deficient number, since it is larger than the sum of its proper divisors (40254013).

4065645011 is a wasteful number, since it uses less digits than its factorization.

4065645011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40254012.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 4065645011 is about 63762.4106429486. The cubic root of 4065645011 is about 1596.0377233008.

The spelling of 4065645011 in words is "four billion, sixty-five million, six hundred forty-five thousand, eleven".