13481481346665 has 32 divisors (see below), whose sum is σ = 21579397401600. Its totient is φ = 7187114988480.

The previous prime is 13481481346649. The next prime is 13481481346667. The reversal of 13481481346665 is 56664318418431.

It is not a de Polignac number, because 13481481346665 - 2⁴ = 13481481346649 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13481481346599 and 13481481346608.

It is not an unprimeable number, because it can be changed into a prime (13481481346667) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 421398820 + ... + 421430810.

It is an arithmetic number, because the mean of its divisors is an integer number (674356168800).

Almost surely, 2^{13481481346665} is an apocalyptic number.

13481481346665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13481481346665 is a deficient number, since it is larger than the sum of its proper divisors (8097916054935).

13481481346665 is a wasteful number, since it uses less digits than its factorization.

13481481346665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42877.

The product of its digits is 39813120, while the sum is 60.

The spelling of 13481481346665 in words is "thirteen trillion, four hundred eighty-one billion, four hundred eighty-one million, three hundred forty-six thousand, six hundred sixty-five".