8168662040 has 256 divisors, whose sum is σ = 23753502720. Its totient is φ = 2454589440.

The previous prime is 8168662031. The next prime is 8168662079. The reversal of 8168662040 is 402668618.

It is a congruent number.

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 63 ways as a sum of consecutive naturals, for example, 10567094 + ... + 10567866.

It is an arithmetic number, because the mean of its divisors is an integer number (92787120).

Almost surely, 2^8168662040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8168662040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11876751360).

8168662040 is an abundant number, since it is smaller than the sum of its proper divisors (15584840680).

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

8168662040 is a wasteful number, since it uses less digits than its factorization.

8168662040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 922 (or 918 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 41.

The square root of 8168662040 is about 90380.6508053577. The cubic root of 8168662040 is about 2013.9575369883.

The spelling of 8168662040 in words is "eight billion, one hundred sixty-eight million, six hundred sixty-two thousand, forty".