16333568673361 has 9 divisors (see below), whose sum is σ = 16459737711529. Its totient is φ = 16208359550500.

The previous prime is 16333568673287. The next prime is 16333568673377. The reversal of 16333568673361 is 16337686533361.

It is a happy number.

The square root of 16333568673361 is 4041481.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 16333568673361 - 2⁹ = 16333568672849 is a prime.

It is a super-2 number, since 2×16333568673361² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16333568673361.

It is not an unprimeable number, because it can be changed into a prime (16333568673061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 529418586 + ... + 529449436.

Almost surely, 2^{16333568673361} is an apocalyptic number.

16333568673361 is the 4041481-st square number.

16333568673361 is the 2020741-st centered octagonal number.

It is an amenable number.

16333568673361 is a deficient number, since it is larger than the sum of its proper divisors (126169038168).

16333568673361 is an frugal number, since it uses more digits than its factorization.

16333568673361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61964 (or 30982 counting only the distinct ones).

The product of its digits is 88179840, while the sum is 61.

The spelling of 16333568673361 in words is "sixteen trillion, three hundred thirty-three billion, five hundred sixty-eight million, six hundred seventy-three thousand, three hundred sixty-one".