664543303763 has 16 divisors (see below), whose sum is σ = 679741421184. Its totient is φ = 649390110720.

The previous prime is 664543303679. The next prime is 664543303789. The reversal of 664543303763 is 367303345466.

It is a cyclic number.

It is not a de Polignac number, because 664543303763 - 2¹⁴ = 664543287379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (664543303363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143310881 + ... + 143315517.

It is an arithmetic number, because the mean of its divisors is an integer number (42483838824).

Almost surely, 2^664543303763 is an apocalyptic number.

664543303763 is a deficient number, since it is larger than the sum of its proper divisors (15198117421).

664543303763 is a wasteful number, since it uses less digits than its factorization.

664543303763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8782.

The product of its (nonzero) digits is 9797760, while the sum is 50.

The spelling of 664543303763 in words is "six hundred sixty-four billion, five hundred forty-three million, three hundred three thousand, seven hundred sixty-three".