16433320621853 has 2 divisors, whose sum is σ = 16433320621854. Its totient is φ = 16433320621852.

The previous prime is 16433320621747. The next prime is 16433320622003. The reversal of 16433320621853 is 35812602333461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16433310655204 + 9966649 = 4053802^2 + 3157^2 .

It is a cyclic number.

It is not a de Polignac number, because 16433320621853 - 2¹⁴ = 16433320605469 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16433320621798 and 16433320621807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16433320621253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8216660310926 + 8216660310927.

It is an arithmetic number, because the mean of its divisors is an integer number (8216660310927).

Almost surely, 2^{16433320621853} is an apocalyptic number.

It is an amenable number.

16433320621853 is a deficient number, since it is larger than the sum of its proper divisors (1).

16433320621853 is an equidigital number, since it uses as much as digits as its factorization.

16433320621853 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1866240, while the sum is 47.

The spelling of 16433320621853 in words is "sixteen trillion, four hundred thirty-three billion, three hundred twenty million, six hundred twenty-one thousand, eight hundred fifty-three".