168068540837 has 8 divisors (see below), whose sum is σ = 170591147712. Its totient is φ = 165550252000.

The previous prime is 168068540789. The next prime is 168068540839. The reversal of 168068540837 is 738045860861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 168068540837 - 2³⁴ = 150888671653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168068540839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1001039 + ... + 1156812.

It is an arithmetic number, because the mean of its divisors is an integer number (21323893464).

Almost surely, 2^168068540837 is an apocalyptic number.

It is an amenable number.

168068540837 is a deficient number, since it is larger than the sum of its proper divisors (2522606875).

168068540837 is a wasteful number, since it uses less digits than its factorization.

168068540837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2159019.

The product of its (nonzero) digits is 7741440, while the sum is 56.

The spelling of 168068540837 in words is "one hundred sixty-eight billion, sixty-eight million, five hundred forty thousand, eight hundred thirty-seven".