168145738361 has 8 divisors (see below), whose sum is σ = 175011012480. Its totient is φ = 161351607312.

The previous prime is 168145738283. The next prime is 168145738363. The reversal of 168145738361 is 163837541861.

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

It is not a de Polignac number, because 168145738361 - 2¹⁰ = 168145737337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168145738363) 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, 17780945 + ... + 17790398.

It is an arithmetic number, because the mean of its divisors is an integer number (21876376560).

Almost surely, 2^168145738361 is an apocalyptic number.

It is an amenable number.

168145738361 is a deficient number, since it is larger than the sum of its proper divisors (6865274119).

168145738361 is a wasteful number, since it uses less digits than its factorization.

168145738361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35571535.

The product of its digits is 2903040, while the sum is 53.

The spelling of 168145738361 in words is "one hundred sixty-eight billion, one hundred forty-five million, seven hundred thirty-eight thousand, three hundred sixty-one".