664013011 has 2 divisors, whose sum is σ = 664013012. Its totient is φ = 664013010.

The previous prime is 664012961. The next prime is 664013017. The reversal of 664013011 is 110310466.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 664013011 - 2⁹ = 664012499 is a prime.

It is a super-2 number, since 2×664013011² = 881826557554572242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (664013017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332006505 + 332006506.

It is an arithmetic number, because the mean of its divisors is an integer number (332006506).

Almost surely, 2^664013011 is an apocalyptic number.

664013011 is a deficient number, since it is larger than the sum of its proper divisors (1).

664013011 is an equidigital number, since it uses as much as digits as its factorization.

664013011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 664013011 is about 25768.4499145758. The cubic root of 664013011 is about 872.4198325370.

Adding to 664013011 its reverse (110310466), we get a palindrome (774323477).

The spelling of 664013011 in words is "six hundred sixty-four million, thirteen thousand, eleven".