816361067803 has 2 divisors, whose sum is σ = 816361067804. Its totient is φ = 816361067802.

The previous prime is 816361067789. The next prime is 816361067827. The reversal of 816361067803 is 308760163618.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-816361067803 is a prime.

It is not a weakly prime, because it can be changed into another prime (816361017803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 408180533901 + 408180533902.

It is an arithmetic number, because the mean of its divisors is an integer number (408180533902).

Almost surely, 2^816361067803 is an apocalyptic number.

816361067803 is a deficient number, since it is larger than the sum of its proper divisors (1).

816361067803 is an equidigital number, since it uses as much as digits as its factorization.

816361067803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 870912, while the sum is 49.

The spelling of 816361067803 in words is "eight hundred sixteen billion, three hundred sixty-one million, sixty-seven thousand, eight hundred three".