664838483137 has 2 divisors, whose sum is σ = 664838483138. Its totient is φ = 664838483136.

The previous prime is 664838483107. The next prime is 664838483189. The reversal of 664838483137 is 731384838466.

664838483137 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 349327099521 + 315511383616 = 591039^2 + 561704^2 .

It is a cyclic number.

It is not a de Polignac number, because 664838483137 - 2⁷ = 664838483009 is a prime.

It is not a weakly prime, because it can be changed into another prime (664838483107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332419241568 + 332419241569.

It is an arithmetic number, because the mean of its divisors is an integer number (332419241569).

Almost surely, 2^664838483137 is an apocalyptic number.

It is an amenable number.

664838483137 is a deficient number, since it is larger than the sum of its proper divisors (1).

664838483137 is an equidigital number, since it uses as much as digits as its factorization.

664838483137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 55738368, while the sum is 61.

The spelling of 664838483137 in words is "six hundred sixty-four billion, eight hundred thirty-eight million, four hundred eighty-three thousand, one hundred thirty-seven".