168386279138880 has 112 divisors (see below), whose sum is σ = 583228839599424. Its totient is φ = 40820916152320.

The previous prime is 168386279138813. The next prime is 168386279138897. The reversal of 168386279138880 is 88831972683861.

It is a junction number, because it is equal to n+sod(n) for n = 168386279138796 and 168386279138805.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7972824627 + ... + 7972845746.

Almost surely, 2^{168386279138880} is an apocalyptic number.

168386279138880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168386279138880 is an abundant number, since it is smaller than the sum of its proper divisors (414842560460544).

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

168386279138880 is a wasteful number, since it uses less digits than its factorization.

168386279138880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15945670404 (or 15945670394 counting only the distinct ones).

The product of its (nonzero) digits is 1337720832, while the sum is 78.

The spelling of 168386279138880 in words is "one hundred sixty-eight trillion, three hundred eighty-six billion, two hundred seventy-nine million, one hundred thirty-eight thousand, eight hundred eighty".