13663104261 has 4 divisors (see below), whose sum is σ = 18217472352. Its totient is φ = 9108736172.

The previous prime is 13663104233. The next prime is 13663104271. The reversal of 13663104261 is 16240136631.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13663104261 - 2⁶ = 13663104197 is a prime.

It is a super-2 number, since 2×13663104261² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13663104271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2277184041 + ... + 2277184046.

It is an arithmetic number, because the mean of its divisors is an integer number (4554368088).

Almost surely, 2^13663104261 is an apocalyptic number.

It is an amenable number.

13663104261 is a deficient number, since it is larger than the sum of its proper divisors (4554368091).

13663104261 is an equidigital number, since it uses as much as digits as its factorization.

13663104261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4554368090.

The product of its (nonzero) digits is 15552, while the sum is 33.

The spelling of 13663104261 in words is "thirteen billion, six hundred sixty-three million, one hundred four thousand, two hundred sixty-one".