168356870072 has 16 divisors (see below), whose sum is σ = 315696107400. Its totient is φ = 84171241440.

The previous prime is 168356870063. The next prime is 168356870113. The reversal of 168356870072 is 270078653861.

It is a junction number, because it is equal to n+sod(n) for n = 168356869996 and 168356870023.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 799079 + ... + 987542.

Almost surely, 2^168356870072 is an apocalyptic number.

It is an amenable number.

168356870072 is a deficient number, since it is larger than the sum of its proper divisors (147339237328).

168356870072 is a wasteful number, since it uses less digits than its factorization.

168356870072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1798406 (or 1798402 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 53.

The spelling of 168356870072 in words is "one hundred sixty-eight billion, three hundred fifty-six million, eight hundred seventy thousand, seventy-two".