16664243363 has 8 divisors (see below), whose sum is σ = 16906659840. Its totient is φ = 16422041160.

The previous prime is 16664243357. The next prime is 16664243389. The reversal of 16664243363 is 36334246661.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16664243363 - 2¹⁰ = 16664242339 is a prime.

It is a super-2 number, since 2×16664243363² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16664243333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106556 + ... + 211382.

It is an arithmetic number, because the mean of its divisors is an integer number (2113332480).

Almost surely, 2^16664243363 is an apocalyptic number.

16664243363 is a deficient number, since it is larger than the sum of its proper divisors (242416477).

16664243363 is a wasteful number, since it uses less digits than its factorization.

16664243363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107137.

The product of its digits is 1119744, while the sum is 44.

The spelling of 16664243363 in words is "sixteen billion, six hundred sixty-four million, two hundred forty-three thousand, three hundred sixty-three".