168196803563 has 2 divisors, whose sum is σ = 168196803564. Its totient is φ = 168196803562.

The previous prime is 168196803547. The next prime is 168196803611. The reversal of 168196803563 is 365308691861.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 168196803563 - 2⁴ = 168196803547 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 168196803499 and 168196803508.

It is not a weakly prime, because it can be changed into another prime (168196803503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84098401781 + 84098401782.

It is an arithmetic number, because the mean of its divisors is an integer number (84098401782).

Almost surely, 2^168196803563 is an apocalyptic number.

168196803563 is a deficient number, since it is larger than the sum of its proper divisors (1).

168196803563 is an equidigital number, since it uses as much as digits as its factorization.

168196803563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5598720, while the sum is 56.

The spelling of 168196803563 in words is "one hundred sixty-eight billion, one hundred ninety-six million, eight hundred three thousand, five hundred sixty-three".