664512848273 has 4 divisors (see below), whose sum is σ = 664515928560. Its totient is φ = 664509767988.

The previous prime is 664512848221. The next prime is 664512848359. The reversal of 664512848273 is 372848215466.

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 664512848273 - 2¹⁰ = 664512847249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (664512848203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1190015 + ... + 1656852.

It is an arithmetic number, because the mean of its divisors is an integer number (166128982140).

Almost surely, 2^664512848273 is an apocalyptic number.

It is an amenable number.

664512848273 is a deficient number, since it is larger than the sum of its proper divisors (3080287).

664512848273 is a wasteful number, since it uses less digits than its factorization.

664512848273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3080286.

The product of its digits is 15482880, while the sum is 56.

The spelling of 664512848273 in words is "six hundred sixty-four billion, five hundred twelve million, eight hundred forty-eight thousand, two hundred seventy-three".