168246636897 has 4 divisors (see below), whose sum is σ = 224328849200. Its totient is φ = 112164424596.

The previous prime is 168246636893. The next prime is 168246636947. The reversal of 168246636897 is 798636642861.

168246636897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 168246636897 - 2² = 168246636893 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168246636893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28041106147 + ... + 28041106152.

It is an arithmetic number, because the mean of its divisors is an integer number (56082212300).

Almost surely, 2^168246636897 is an apocalyptic number.

It is an amenable number.

168246636897 is a deficient number, since it is larger than the sum of its proper divisors (56082212303).

168246636897 is an equidigital number, since it uses as much as digits as its factorization.

168246636897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56082212302.

The product of its digits is 125411328, while the sum is 66.

The spelling of 168246636897 in words is "one hundred sixty-eight billion, two hundred forty-six million, six hundred thirty-six thousand, eight hundred ninety-seven".