16663316452 has 6 divisors (see below), whose sum is σ = 29160803798. Its totient is φ = 8331658224.

The previous prime is 16663316363. The next prime is 16663316471. The reversal of 16663316452 is 25461336661.

16663316452 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 10583059876 + 6080256576 = 102874^2 + 77976^2 .

It is a super-2 number, since 2×16663316452² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16663316399 and 16663316408.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2082914553 + ... + 2082914560.

Almost surely, 2^16663316452 is an apocalyptic number.

It is an amenable number.

16663316452 is a deficient number, since it is larger than the sum of its proper divisors (12497487346).

16663316452 is a wasteful number, since it uses less digits than its factorization.

16663316452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4165829117 (or 4165829115 counting only the distinct ones).

The product of its digits is 466560, while the sum is 43.

The spelling of 16663316452 in words is "sixteen billion, six hundred sixty-three million, three hundred sixteen thousand, four hundred fifty-two".