13635666352 has 80 divisors (see below), whose sum is σ = 33060455424. Its totient is φ = 5292864000.

The previous prime is 13635666349. The next prime is 13635666377. The reversal of 13635666352 is 25366653631.

It is a happy 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, 313452 + ... + 354292.

Almost surely, 2^13635666352 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 13635666352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16530227712).

13635666352 is an abundant number, since it is smaller than the sum of its proper divisors (19424789072).

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

13635666352 is a wasteful number, since it uses less digits than its factorization.

13635666352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41138 (or 41132 counting only the distinct ones).

The product of its digits is 1749600, while the sum is 46.

The spelling of 13635666352 in words is "thirteen billion, six hundred thirty-five million, six hundred sixty-six thousand, three hundred fifty-two".