13663600745 has 8 divisors (see below), whose sum is σ = 16397602440. Its totient is φ = 10930026240.

The previous prime is 13663600669. The next prime is 13663600747. The reversal of 13663600745 is 54700636631.

It can be written as a sum of positive squares in 4 ways, for example, as 219662041 + 13443938704 = 14821^2 + 115948^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13663600745 - 2¹⁰ = 13663599721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13663600747) 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, 31616 + ... + 168305.

It is an arithmetic number, because the mean of its divisors is an integer number (2049700305).

Almost surely, 2^13663600745 is an apocalyptic number.

It is an amenable number.

13663600745 is a deficient number, since it is larger than the sum of its proper divisors (2734001695).

13663600745 is a wasteful number, since it uses less digits than its factorization.

13663600745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213595.

The product of its (nonzero) digits is 272160, while the sum is 41.

The spelling of 13663600745 in words is "thirteen billion, six hundred sixty-three million, six hundred thousand, seven hundred forty-five".