8616921658008 has 128 divisors (see below), whose sum is σ = 21978712627200. Its totient is φ = 2814808144896.

The previous prime is 8616921657989. The next prime is 8616921658031. The reversal of 8616921658008 is 8008561296168.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 108086610 + ... + 108166302.

It is an arithmetic number, because the mean of its divisors is an integer number (171708692400).

Almost surely, 2^{8616921658008} is an apocalyptic number.

It is an amenable number.

8616921658008 is an abundant number, since it is smaller than the sum of its proper divisors (13361790969192).

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

8616921658008 is a wasteful number, since it uses less digits than its factorization.

8616921658008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80241 (or 80237 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 60.

The spelling of 8616921658008 in words is "eight trillion, six hundred sixteen billion, nine hundred twenty-one million, six hundred fifty-eight thousand, eight".