8635993641660 has 2304 divisors, whose sum is σ = 36134162104320. Its totient is φ = 1493146828800.

The previous prime is 8635993641659. The next prime is 8635993641697. The reversal of 8635993641660 is 661463995368.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a junction number, because it is equal to n+sod(n) for n = 8635993641591 and 8635993641600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 767 ways as a sum of consecutive naturals, for example, 210633991240 + ... + 210633991280.

It is an arithmetic number, because the mean of its divisors is an integer number (15683230080).

Almost surely, 2^{8635993641660} 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 8635993641660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18067081052160).

8635993641660 is an abundant number, since it is smaller than the sum of its proper divisors (27498168462660).

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

8635993641660 is a wasteful number, since it uses less digits than its factorization.

8635993641660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185 (or 128 counting only the distinct ones).

The product of its (nonzero) digits is 151165440, while the sum is 66.

The spelling of 8635993641660 in words is "eight trillion, six hundred thirty-five billion, nine hundred ninety-three million, six hundred forty-one thousand, six hundred sixty".