168864398083 has 4 divisors (see below), whose sum is σ = 168909300648. Its totient is φ = 168819495520.

The previous prime is 168864398063. The next prime is 168864398099. The reversal of 168864398083 is 380893468861.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 168864398083 - 2¹³ = 168864389891 is a prime.

It is a super-3 number, since 3×168864398083³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168864398063) 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 3 ways as a sum of consecutive naturals, for example, 22445641 + ... + 22453162.

It is an arithmetic number, because the mean of its divisors is an integer number (42227325162).

Almost surely, 2^168864398083 is an apocalyptic number.

168864398083 is a deficient number, since it is larger than the sum of its proper divisors (44902565).

168864398083 is an equidigital number, since it uses as much as digits as its factorization.

168864398083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44902564.

The product of its (nonzero) digits is 47775744, while the sum is 64.

The spelling of 168864398083 in words is "one hundred sixty-eight billion, eight hundred sixty-four million, three hundred ninety-eight thousand, eighty-three".