16433320621747 has 2 divisors, whose sum is σ = 16433320621748. Its totient is φ = 16433320621746.

The previous prime is 16433320621733. The next prime is 16433320621853. The reversal of 16433320621747 is 74712602333461.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16433320621747 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16433320621747.

It is not a weakly prime, because it can be changed into another prime (16433320621547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8216660310873 + 8216660310874.

It is an arithmetic number, because the mean of its divisors is an integer number (8216660310874).

Almost surely, 2^{16433320621747} is an apocalyptic number.

16433320621747 is a deficient number, since it is larger than the sum of its proper divisors (1).

16433320621747 is an equidigital number, since it uses as much as digits as its factorization.

16433320621747 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3048192, while the sum is 49.

The spelling of 16433320621747 in words is "sixteen trillion, four hundred thirty-three billion, three hundred twenty million, six hundred twenty-one thousand, seven hundred forty-seven".