13366889985 has 8 divisors (see below), whose sum is σ = 21387024000. Its totient is φ = 7129007984.

The previous prime is 13366889971. The next prime is 13366890011. The reversal of 13366889985 is 58998866331.

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 13366889985 - 2⁸ = 13366889729 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 445562985 + ... + 445563014.

It is an arithmetic number, because the mean of its divisors is an integer number (2673378000).

Almost surely, 2^13366889985 is an apocalyptic number.

13366889985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13366889985 is a deficient number, since it is larger than the sum of its proper divisors (8020134015).

13366889985 is an equidigital number, since it uses as much as digits as its factorization.

13366889985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 891126007.

The product of its digits is 67184640, while the sum is 66.

The spelling of 13366889985 in words is "thirteen billion, three hundred sixty-six million, eight hundred eighty-nine thousand, nine hundred eighty-five".