8040245778656 has 192 divisors, whose sum is σ = 19967384908800. Its totient is φ = 3166731671040.

The previous prime is 8040245778647. The next prime is 8040245778703. The reversal of 8040245778656 is 6568775420408.

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, 32266061 + ... + 32514291.

It is an arithmetic number, because the mean of its divisors is an integer number (103996796400).

Almost surely, 2^{8040245778656} 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 8040245778656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9983692454400).

8040245778656 is an abundant number, since it is smaller than the sum of its proper divisors (11927139130144).

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

8040245778656 is a wasteful number, since it uses less digits than its factorization.

8040245778656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248502 (or 248480 counting only the distinct ones).

The product of its (nonzero) digits is 90316800, while the sum is 62.

The spelling of 8040245778656 in words is "eight trillion, forty billion, two hundred forty-five million, seven hundred seventy-eight thousand, six hundred fifty-six".