168135415773 has 24 divisors (see below), whose sum is σ = 242779113792. Its totient is φ = 103456274688.

The previous prime is 168135415727. The next prime is 168135415823. The reversal of 168135415773 is 377514531861.

It is not a de Polignac number, because 168135415773 - 2⁸ = 168135415517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168135415073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7300965 + ... + 7323957.

It is an arithmetic number, because the mean of its divisors is an integer number (10115796408).

Almost surely, 2^168135415773 is an apocalyptic number.

168135415773 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

168135415773 is a deficient number, since it is larger than the sum of its proper divisors (74643698019).

168135415773 is a wasteful number, since it uses less digits than its factorization.

168135415773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37445 (or 37432 counting only the distinct ones).

The product of its digits is 2116800, while the sum is 51.

The spelling of 168135415773 in words is "one hundred sixty-eight billion, one hundred thirty-five million, four hundred fifteen thousand, seven hundred seventy-three".