168397455813 has 8 divisors (see below), whose sum is σ = 226297893888. Its totient is φ = 111380994144.

The previous prime is 168397455763. The next prime is 168397455823. The reversal of 168397455813 is 318554793861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 168397455813 - 2¹⁶ = 168397390277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168397455823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220993656 + ... + 220994417.

It is an arithmetic number, because the mean of its divisors is an integer number (28287236736).

Almost surely, 2^168397455813 is an apocalyptic number.

It is an amenable number.

168397455813 is a deficient number, since it is larger than the sum of its proper divisors (57900438075).

168397455813 is a wasteful number, since it uses less digits than its factorization.

168397455813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441988203.

The product of its digits is 21772800, while the sum is 60.

The spelling of 168397455813 in words is "one hundred sixty-eight billion, three hundred ninety-seven million, four hundred fifty-five thousand, eight hundred thirteen".