13563669755 has 8 divisors (see below), whose sum is σ = 16317404592. Its totient is φ = 10823601888.

The previous prime is 13563669727. The next prime is 13563669761. The reversal of 13563669755 is 55796636531.

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

It is a cyclic number.

It is not a de Polignac number, because 13563669755 - 2⁸ = 13563669499 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13563669755.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3414557 + ... + 3418526.

It is an arithmetic number, because the mean of its divisors is an integer number (2039675574).

Almost surely, 2^13563669755 is an apocalyptic number.

13563669755 is a deficient number, since it is larger than the sum of its proper divisors (2753734837).

13563669755 is an equidigital number, since it uses as much as digits as its factorization.

13563669755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6833485.

The product of its digits is 15309000, while the sum is 56.

The spelling of 13563669755 in words is "thirteen billion, five hundred sixty-three million, six hundred sixty-nine thousand, seven hundred fifty-five".