663324868423366 has 16 divisors (see below), whose sum is σ = 1013677547122944. Its totient is φ = 325469996713224.

The previous prime is 663324868423351. The next prime is 663324868423391.

663324868423366 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×663324868423366² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 663324868423295 and 663324868423304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9410963970 + ... + 9411034453.

It is an arithmetic number, because the mean of its divisors is an integer number (63354846695184).

Almost surely, 2^{663324868423366} is an apocalyptic number.

663324868423366 is a deficient number, since it is larger than the sum of its proper divisors (350352678699578).

663324868423366 is a wasteful number, since it uses less digits than its factorization.

663324868423366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18821998755.

The product of its digits is 2579890176, while the sum is 70.

The spelling of 663324868423366 in words is "six hundred sixty-three trillion, three hundred twenty-four billion, eight hundred sixty-eight million, four hundred twenty-three thousand, three hundred sixty-six".