664620410233241 has 32 divisors (see below), whose sum is σ = 830494844467200. Its totient is φ = 516712878259200.

The previous prime is 664620410233189. The next prime is 664620410233243. The reversal of 664620410233241 is 142332014026466.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-664620410233241 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 664620410233192 and 664620410233201.

It is not an unprimeable number, because it can be changed into a prime (664620410233243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 939720950 + ... + 940427936.

It is an arithmetic number, because the mean of its divisors is an integer number (25952963889600).

Almost surely, 2^{664620410233241} is an apocalyptic number.

It is an amenable number.

664620410233241 is a deficient number, since it is larger than the sum of its proper divisors (165874434233959).

664620410233241 is a wasteful number, since it uses less digits than its factorization.

664620410233241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734645.

The product of its (nonzero) digits is 995328, while the sum is 44.

The spelling of 664620410233241 in words is "six hundred sixty-four trillion, six hundred twenty billion, four hundred ten million, two hundred thirty-three thousand, two hundred forty-one".