13664066241 has 16 divisors (see below), whose sum is σ = 20829201408. Its totient is φ = 7805125200.

The previous prime is 13664066209. The next prime is 13664066257. The reversal of 13664066241 is 14266046631.

It is not a de Polignac number, because 13664066241 - 2⁵ = 13664066209 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13664066241.

It is not an unprimeable number, because it can be changed into a prime (13664066641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63075 + ... + 176936.

It is an arithmetic number, because the mean of its divisors is an integer number (1301825088).

Almost surely, 2^13664066241 is an apocalyptic number.

It is an amenable number.

13664066241 is a deficient number, since it is larger than the sum of its proper divisors (7165135167).

13664066241 is a wasteful number, since it uses less digits than its factorization.

13664066241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242732.

The product of its (nonzero) digits is 124416, while the sum is 39.

The spelling of 13664066241 in words is "thirteen billion, six hundred sixty-four million, sixty-six thousand, two hundred forty-one".