168343000381 has 16 divisors (see below), whose sum is σ = 169767134208. Its totient is φ = 166926240000.

The previous prime is 168343000369. The next prime is 168343000411. The reversal of 168343000381 is 183000343861.

168343000381 is a nontrivial binomial coefficient, being equal to C(580247, 2).

It is a cyclic number.

It is not a de Polignac number, because 168343000381 - 2¹⁵ = 168342967613 is a prime.

It is a super-2 number, since 2×168343000381² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 168343000381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168343000321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116338600 + ... + 116340046.

It is an arithmetic number, because the mean of its divisors is an integer number (10610445888).

Almost surely, 2^168343000381 is an apocalyptic number.

168343000381 is the 580246-th triangular number.

168343000381 is the 193416-th centered nonagonal number.

It is an amenable number.

168343000381 is a deficient number, since it is larger than the sum of its proper divisors (1424133827).

168343000381 is a wasteful number, since it uses less digits than its factorization.

168343000381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3372.

The product of its (nonzero) digits is 41472, while the sum is 37.

The spelling of 168343000381 in words is "one hundred sixty-eight billion, three hundred forty-three million, three hundred eighty-one", and thus it is an aban number.