168871715044 has 24 divisors (see below), whose sum is σ = 297091162368. Its totient is φ = 83989691520.

The previous prime is 168871715039. The next prime is 168871715087. The reversal of 168871715044 is 440517178861.

It is a super-2 number, since 2×168871715044² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 168871714982 and 168871715000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 435657 + ... + 726319.

It is an arithmetic number, because the mean of its divisors is an integer number (12378798432).

Almost surely, 2^168871715044 is an apocalyptic number.

It is an amenable number.

168871715044 is a deficient number, since it is larger than the sum of its proper divisors (128219447324).

168871715044 is a wasteful number, since it uses less digits than its factorization.

168871715044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291435 (or 291433 counting only the distinct ones).

The product of its (nonzero) digits is 1505280, while the sum is 52.

The spelling of 168871715044 in words is "one hundred sixty-eight billion, eight hundred seventy-one million, seven hundred fifteen thousand, forty-four".