8168461368156 has 60 divisors (see below), whose sum is σ = 21354438047712. Its totient is φ = 2722760972352.

The previous prime is 8168461368121. The next prime is 8168461368161. The reversal of 8168461368156 is 6518631648618.

8168461368156 is a `hidden beast` number, since 8 + 1 + 6 + 8 + 4 + 613 + 6 + 8 + 1 + 5 + 6 = 666.

It is a super-2 number, since 2×8168461368156² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8168461368093 and 8168461368102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 16073896 + ... + 16574288.

Almost surely, 2^{8168461368156} is an apocalyptic number.

It is an amenable number.

8168461368156 is an abundant number, since it is smaller than the sum of its proper divisors (13185976679556).

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

8168461368156 is a wasteful number, since it uses less digits than its factorization.

8168461368156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550792 (or 550781 counting only the distinct ones).

The product of its digits is 39813120, while the sum is 63.

The spelling of 8168461368156 in words is "eight trillion, one hundred sixty-eight billion, four hundred sixty-one million, three hundred sixty-eight thousand, one hundred fifty-six".