8657994110640 has 960 divisors, whose sum is σ = 33378149376000. Its totient is φ = 1845688965120.

The previous prime is 8657994110533. The next prime is 8657994110657. The reversal of 8657994110640 is 460114997568.

It is a super-2 number, since 2×8657994110640² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 10079154531 + ... + 10079155389.

It is an arithmetic number, because the mean of its divisors is an integer number (34768905600).

Almost surely, 2^{8657994110640} is an apocalyptic number.

8657994110640 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8657994110640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16689074688000).

8657994110640 is an abundant number, since it is smaller than the sum of its proper divisors (24720155265360).

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

8657994110640 is a wasteful number, since it uses less digits than its factorization.

8657994110640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1558 (or 1545 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 60.

The spelling of 8657994110640 in words is "eight trillion, six hundred fifty-seven billion, nine hundred ninety-four million, one hundred ten thousand, six hundred forty".