8370121916256 has 96 divisors (see below), whose sum is σ = 22732886856960. Its totient is φ = 2693396611584.

The previous prime is 8370121916251. The next prime is 8370121916297. The reversal of 8370121916256 is 6526191210738.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 8370121916199 and 8370121916208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8370121916251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17196171 + ... + 17676213.

It is an arithmetic number, because the mean of its divisors is an integer number (236800904760).

Almost surely, 2^{8370121916256} 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 8370121916256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11366443428480).

8370121916256 is an abundant number, since it is smaller than the sum of its proper divisors (14362764940704).

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

8370121916256 is a wasteful number, since it uses less digits than its factorization.

8370121916256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486348 (or 486340 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 51.

The spelling of 8370121916256 in words is "eight trillion, three hundred seventy billion, one hundred twenty-one million, nine hundred sixteen thousand, two hundred fifty-six".