664653165341 has 4 divisors (see below), whose sum is σ = 725076180384. Its totient is φ = 604230150300.

The previous prime is 664653165311. The next prime is 664653165367. The reversal of 664653165341 is 143561356466.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 664653165341 - 2¹⁸ = 664652903197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 664653165341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664653165311) 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 3 ways as a sum of consecutive naturals, for example, 30211507505 + ... + 30211507526.

It is an arithmetic number, because the mean of its divisors is an integer number (181269045096).

Almost surely, 2^664653165341 is an apocalyptic number.

It is an amenable number.

664653165341 is a deficient number, since it is larger than the sum of its proper divisors (60423015043).

664653165341 is a wasteful number, since it uses less digits than its factorization.

664653165341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60423015042.

The product of its digits is 4665600, while the sum is 50.

The spelling of 664653165341 in words is "six hundred sixty-four billion, six hundred fifty-three million, one hundred sixty-five thousand, three hundred forty-one".