168135065702452 has 24 divisors (see below), whose sum is σ = 296309812969800. Its totient is φ = 83475495168000.

The previous prime is 168135065702431. The next prime is 168135065702453. The reversal of 168135065702452 is 254207560531861.

It can be written as a sum of positive squares in 4 ways, for example, as 4991310047376 + 163143755655076 = 2234124^2 + 12772774^2 .

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 168135065702393 and 168135065702402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168135065702453) 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, 45213373 + ... + 48790564.

It is an arithmetic number, because the mean of its divisors is an integer number (12346242207075).

Almost surely, 2^{168135065702452} is an apocalyptic number.

It is an amenable number.

168135065702452 is a deficient number, since it is larger than the sum of its proper divisors (128174747267348).

168135065702452 is a wasteful number, since it uses less digits than its factorization.

168135065702452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94007091 (or 94007089 counting only the distinct ones).

The product of its (nonzero) digits is 12096000, while the sum is 55.

The spelling of 168135065702452 in words is "one hundred sixty-eight trillion, one hundred thirty-five billion, sixty-five million, seven hundred two thousand, four hundred fifty-two".