168669111996 has 864 divisors, whose sum is σ = 609468088320. Its totient is φ = 39491971200.

The previous prime is 168669111841. The next prime is 168669111997. The reversal of 168669111996 is 699111966861.

It is a super-2 number, since 2×168669111996² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168669111997) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 883084261 + ... + 883084451.

It is an arithmetic number, because the mean of its divisors is an integer number (705402880).

Almost surely, 2^168669111996 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 168669111996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (304734044160).

168669111996 is an abundant number, since it is smaller than the sum of its proper divisors (440798976324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

168669111996 is a wasteful number, since it uses less digits than its factorization.

168669111996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279 (or 256 counting only the distinct ones).

The product of its digits is 7558272, while the sum is 63.

The spelling of 168669111996 in words is "one hundred sixty-eight billion, six hundred sixty-nine million, one hundred eleven thousand, nine hundred ninety-six".