13664580 has 24 divisors (see below), whose sum is σ = 38260992. Its totient is φ = 3643872.

The previous prime is 13664569. The next prime is 13664587. The reversal of 13664580 is 8546631.

It is not an unprimeable number, because it can be changed into a prime (13664587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113812 + ... + 113931.

It is an arithmetic number, because the mean of its divisors is an integer number (1594208).

Almost surely, 2^13664580 is an apocalyptic number.

13664580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13664580 is an abundant number, since it is smaller than the sum of its proper divisors (24596412).

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

13664580 is a wasteful number, since it uses less digits than its factorization.

13664580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227755 (or 227753 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 13664580 is about 3696.5632687674. The cubic root of 13664580 is about 239.0738612653.

The spelling of 13664580 in words is "thirteen million, six hundred sixty-four thousand, five hundred eighty".