664788730803 has 48 divisors (see below), whose sum is σ = 986361822720. Its totient is φ = 397431046144.

The previous prime is 664788730717. The next prime is 664788730819. The reversal of 664788730803 is 308037887466.

It is not a de Polignac number, because 664788730803 - 2¹⁴ = 664788714419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (664788730843) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5059978 + ... + 5189696.

It is an arithmetic number, because the mean of its divisors is an integer number (20549204640).

Almost surely, 2^664788730803 is an apocalyptic number.

664788730803 is a deficient number, since it is larger than the sum of its proper divisors (321573091917).

664788730803 is a wasteful number, since it uses less digits than its factorization.

664788730803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130036 (or 130019 counting only the distinct ones).

The product of its (nonzero) digits is 32514048, while the sum is 60.

The spelling of 664788730803 in words is "six hundred sixty-four billion, seven hundred eighty-eight million, seven hundred thirty thousand, eight hundred three".