13655660 has 24 divisors (see below), whose sum is σ = 28976640. Its totient is φ = 5405184.

The previous prime is 13655659. The next prime is 13655669. The reversal of 13655660 is 6655631.

13655660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (13655669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1580 + ... + 5459.

It is an arithmetic number, because the mean of its divisors is an integer number (1207360).

Almost surely, 2^13655660 is an apocalyptic number.

13655660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13655660 is an abundant number, since it is smaller than the sum of its proper divisors (15320980).

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

13655660 is a wasteful number, since it uses less digits than its factorization.

13655660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7145 (or 7143 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 13655660 is about 3695.3565457206. The cubic root of 13655660 is about 239.0218288565.

The spelling of 13655660 in words is "thirteen million, six hundred fifty-five thousand, six hundred sixty".