168616043752 has 32 divisors (see below), whose sum is σ = 340518979080. Its totient is φ = 77812669440.

The previous prime is 168616043699. The next prime is 168616043767. The reversal of 168616043752 is 257340616861.

It can be written as a sum of positive squares in 4 ways, for example, as 81787992196 + 86828051556 = 285986^2 + 294666^2 .

It is a super-3 number, since 3×168616043752³ (a number of 35 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 168616043696 and 168616043705.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 729852 + ... + 932692.

Almost surely, 2^168616043752 is an apocalyptic number.

It is an amenable number.

168616043752 is an abundant number, since it is smaller than the sum of its proper divisors (171902935328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

168616043752 is a wasteful number, since it uses less digits than its factorization.

168616043752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210853 (or 210849 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 168616043752 in words is "one hundred sixty-eight billion, six hundred sixteen million, forty-three thousand, seven hundred fifty-two".