664066011 has 32 divisors (see below), whose sum is σ = 1037403648. Its totient is φ = 370022400.

The previous prime is 664066003. The next prime is 664066037. The reversal of 664066011 is 110660466.

It is not a de Polignac number, because 664066011 - 2³ = 664066003 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 664066011.

It is not an unprimeable number, because it can be changed into a prime (664066001) 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 31 ways as a sum of consecutive naturals, for example, 139771 + ... + 144443.

It is an arithmetic number, because the mean of its divisors is an integer number (32418864).

Almost surely, 2^664066011 is an apocalyptic number.

664066011 is a deficient number, since it is larger than the sum of its proper divisors (373337637).

664066011 is a wasteful number, since it uses less digits than its factorization.

664066011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4851.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 664066011 is about 25769.4782834267. The cubic root of 664066011 is about 872.4430434381.

The spelling of 664066011 in words is "six hundred sixty-four million, sixty-six thousand, eleven".