168196069993 has 8 divisors (see below), whose sum is σ = 196147020800. Its totient is φ = 144168059700.

The previous prime is 168196069981. The next prime is 168196069997. The reversal of 168196069993 is 399960691861.

It is not a de Polignac number, because 168196069993 - 2¹³ = 168196061801 is a prime.

It is a super-2 number, since 2×168196069993² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168196069997) 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, 245183433 + ... + 245184118.

It is an arithmetic number, because the mean of its divisors is an integer number (24518377600).

Almost surely, 2^168196069993 is an apocalyptic number.

It is an amenable number.

168196069993 is a deficient number, since it is larger than the sum of its proper divisors (27950950807).

168196069993 is an frugal number, since it uses more digits than its factorization.

168196069993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490367572 (or 490367558 counting only the distinct ones).

The product of its (nonzero) digits is 34012224, while the sum is 67.

The spelling of 168196069993 in words is "one hundred sixty-eight billion, one hundred ninety-six million, sixty-nine thousand, nine hundred ninety-three".