168146341887 has 4 divisors (see below), whose sum is σ = 224195122520. Its totient is φ = 112097561256.

The previous prime is 168146341877. The next prime is 168146341901. The reversal of 168146341887 is 788143641861.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 788143641861 = 3 ⋅262714547287.

It is not a de Polignac number, because 168146341887 - 2⁴ = 168146341871 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 (168146341837) 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, 28024390312 + ... + 28024390317.

It is an arithmetic number, because the mean of its divisors is an integer number (56048780630).

Almost surely, 2^168146341887 is an apocalyptic number.

168146341887 is a deficient number, since it is larger than the sum of its proper divisors (56048780633).

168146341887 is an equidigital number, since it uses as much as digits as its factorization.

168146341887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56048780632.

The product of its digits is 6193152, while the sum is 57.

The spelling of 168146341887 in words is "one hundred sixty-eight billion, one hundred forty-six million, three hundred forty-one thousand, eight hundred eighty-seven".