168141864907 has 4 divisors (see below), whose sum is σ = 168381725616. Its totient is φ = 167902004200.

The previous prime is 168141864887. The next prime is 168141864911. The reversal of 168141864907 is 709468141861.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 168141864907 - 2²⁷ = 168007647179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168141864707) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119929303 + ... + 119930704.

It is an arithmetic number, because the mean of its divisors is an integer number (42095431404).

Almost surely, 2^168141864907 is an apocalyptic number.

168141864907 is a deficient number, since it is larger than the sum of its proper divisors (239860709).

168141864907 is an equidigital number, since it uses as much as digits as its factorization.

168141864907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239860708.

The product of its (nonzero) digits is 2322432, while the sum is 55.

The spelling of 168141864907 in words is "one hundred sixty-eight billion, one hundred forty-one million, eight hundred sixty-four thousand, nine hundred seven".