168417979712 has 28 divisors (see below), whose sum is σ = 334360797876. Its totient is φ = 84169589760.

The previous prime is 168417979679. The next prime is 168417979727. The reversal of 168417979712 is 217979714861.

It can be written as a sum of positive squares in 2 ways, for example, as 153557394496 + 14860585216 = 391864^2 + 121904^2 .

It is a super-3 number, since 3×168417979712³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 477533 + ... + 751580.

It is an arithmetic number, because the mean of its divisors is an integer number (11941457067).

Almost surely, 2^168417979712 is an apocalyptic number.

It is an amenable number.

168417979712 is a deficient number, since it is larger than the sum of its proper divisors (165942818164).

168417979712 is a wasteful number, since it uses less digits than its factorization.

168417979712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1231266 (or 1231256 counting only the distinct ones).

The product of its digits is 10668672, while the sum is 62.

The spelling of 168417979712 in words is "one hundred sixty-eight billion, four hundred seventeen million, nine hundred seventy-nine thousand, seven hundred twelve".