168908823004 has 6 divisors (see below), whose sum is σ = 295590440264. Its totient is φ = 84454411500.

The previous prime is 168908823001. The next prime is 168908823037. The reversal of 168908823004 is 400328809861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168908823001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21113602872 + ... + 21113602879.

Almost surely, 2^168908823004 is an apocalyptic number.

It is an amenable number.

168908823004 is a deficient number, since it is larger than the sum of its proper divisors (126681617260).

168908823004 is a wasteful number, since it uses less digits than its factorization.

168908823004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42227205755 (or 42227205753 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 49.

The spelling of 168908823004 in words is "one hundred sixty-eight billion, nine hundred eight million, eight hundred twenty-three thousand, four".