13663436800 has 192 divisors, whose sum is σ = 36519771960. Its totient is φ = 5041029120.

The previous prime is 13663436777. The next prime is 13663436821. The reversal of 13663436800 is 863436631.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10648959 + ... + 10650241.

Almost surely, 2^13663436800 is an apocalyptic number.

13663436800 is a gapful number since it is divisible by the number (10) 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 13663436800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18259885980).

13663436800 is an abundant number, since it is smaller than the sum of its proper divisors (22856335160).

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

13663436800 is an equidigital number, since it uses as much as digits as its factorization.

13663436800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1336 (or 1303 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 40.

The spelling of 13663436800 in words is "thirteen billion, six hundred sixty-three million, four hundred thirty-six thousand, eight hundred".