13603260660 has 288 divisors, whose sum is σ = 43859902464. Its totient is φ = 3120864000.

The previous prime is 13603260631. The next prime is 13603260661. The reversal of 13603260660 is 6606230631.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13603260661) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 71221165 + ... + 71221355.

It is an arithmetic number, because the mean of its divisors is an integer number (152291328).

Almost surely, 2^13603260660 is an apocalyptic number.

13603260660 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 13603260660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21929951232).

13603260660 is an abundant number, since it is smaller than the sum of its proper divisors (30256641804).

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

13603260660 is a wasteful number, since it uses less digits than its factorization.

13603260660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363 (or 302 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 33.

The spelling of 13603260660 in words is "thirteen billion, six hundred three million, two hundred sixty thousand, six hundred sixty".