13660505652 has 48 divisors (see below), whose sum is σ = 33926280192. Its totient is φ = 4263198720.

The previous prime is 13660505633. The next prime is 13660505659. The reversal of 13660505652 is 25650506631.

13660505652 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 13660505652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13660505659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136333 + ... + 214260.

It is an arithmetic number, because the mean of its divisors is an integer number (706797504).

Almost surely, 2^13660505652 is an apocalyptic number.

13660505652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13660505652 is an abundant number, since it is smaller than the sum of its proper divisors (20265774540).

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

13660505652 is a wasteful number, since it uses less digits than its factorization.

13660505652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350808 (or 350806 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 39.

The spelling of 13660505652 in words is "thirteen billion, six hundred sixty million, five hundred five thousand, six hundred fifty-two".