13666631335 has 8 divisors (see below), whose sum is σ = 18742808736. Its totient is φ = 9371404320.

The previous prime is 13666631327. The next prime is 13666631339. The reversal of 13666631335 is 53313666631.

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

It is not a de Polignac number, because 13666631335 - 2³ = 13666631327 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13666631291 and 13666631300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13666631339) by changing a digit.

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, 195237556 + ... + 195237625.

It is an arithmetic number, because the mean of its divisors is an integer number (2342851092).

Almost surely, 2^13666631335 is an apocalyptic number.

13666631335 is a deficient number, since it is larger than the sum of its proper divisors (5076177401).

13666631335 is an equidigital number, since it uses as much as digits as its factorization.

13666631335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390475193.

The product of its digits is 524880, while the sum is 43.

The spelling of 13666631335 in words is "thirteen billion, six hundred sixty-six million, six hundred thirty-one thousand, three hundred thirty-five".