163636158077797 has 2 divisors, whose sum is σ = 163636158077798. Its totient is φ = 163636158077796.

The previous prime is 163636158077773. The next prime is 163636158077837. The reversal of 163636158077797 is 797770851636361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114197456515041 + 49438701562756 = 10686321^2 + 7031266^2 .

It is a cyclic number.

It is not a de Polignac number, because 163636158077797 - 2⁷ = 163636158077669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163636158077597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81818079038898 + 81818079038899.

It is an arithmetic number, because the mean of its divisors is an integer number (81818079038899).

Almost surely, 2^{163636158077797} is an apocalyptic number.

It is an amenable number.

163636158077797 is a deficient number, since it is larger than the sum of its proper divisors (1).

163636158077797 is an equidigital number, since it uses as much as digits as its factorization.

163636158077797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680315840, while the sum is 76.

The spelling of 163636158077797 in words is "one hundred sixty-three trillion, six hundred thirty-six billion, one hundred fifty-eight million, seventy-seven thousand, seven hundred ninety-seven".