168075200641924 has 27 divisors (see below), whose sum is σ = 294555061990917. Its totient is φ = 83916785245104.

The previous prime is 168075200641921. The next prime is 168075200641937. The reversal of 168075200641924 is 429146002570861.

The square root of 168075200641924 is 12964382.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 103835488600900 + 64239712041024 = 10189970^2 + 8014968^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168075200641921) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 19628070067 + ... + 19628078629.

Almost surely, 2^{168075200641924} is an apocalyptic number.

168075200641924 is the 12964382-nd square number.

It is an amenable number.

168075200641924 is a deficient number, since it is larger than the sum of its proper divisors (126479861348993).

168075200641924 is an frugal number, since it uses more digits than its factorization.

168075200641924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18644 (or 9322 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 55.

The spelling of 168075200641924 in words is "one hundred sixty-eight trillion, seventy-five billion, two hundred million, six hundred forty-one thousand, nine hundred twenty-four".