8663698963668 has 144 divisors (see below), whose sum is σ = 24900737710464. Its totient is φ = 2329574768640.

The previous prime is 8663698963649. The next prime is 8663698963687.

8663698963668 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (8663698963649) and next prime (8663698963687).

It is a Harshad number since it is a multiple of its sum of digits (84).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 261008953 + ... + 261042143.

It is an arithmetic number, because the mean of its divisors is an integer number (172921789656).

Almost surely, 2^{8663698963668} 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 8663698963668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12450368855232).

8663698963668 is an abundant number, since it is smaller than the sum of its proper divisors (16237038746796).

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

8663698963668 is a wasteful number, since it uses less digits than its factorization.

8663698963668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59342 (or 59333 counting only the distinct ones).

The product of its digits is 17414258688, while the sum is 84.

The spelling of 8663698963668 in words is "eight trillion, six hundred sixty-three billion, six hundred ninety-eight million, nine hundred sixty-three thousand, six hundred sixty-eight".