13663282640 has 80 divisors (see below), whose sum is σ = 36900554880. Its totient is φ = 4607746560.

The previous prime is 13663282621. The next prime is 13663282657. The reversal of 13663282640 is 4628236631.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 165830 + ... + 234149.

It is an arithmetic number, because the mean of its divisors is an integer number (461256936).

Almost surely, 2^13663282640 is an apocalyptic number.

13663282640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13663282640 is an abundant number, since it is smaller than the sum of its proper divisors (23237272240).

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

13663282640 is a wasteful number, since it uses less digits than its factorization.

13663282640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400060 (or 400054 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 41.

The spelling of 13663282640 in words is "thirteen billion, six hundred sixty-three million, two hundred eighty-two thousand, six hundred forty".