13400215605 has 48 divisors (see below), whose sum is σ = 26553346560. Its totient is φ = 6123930624.

The previous prime is 13400215597. The next prime is 13400215663. The reversal of 13400215605 is 50651200431.

13400215605 is a `hidden beast` number, since 1 + 3 + 40 + 0 + 2 + 15 + 605 = 666.

13400215605 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13400215605 - 2³ = 13400215597 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1922116 + ... + 1929074.

It is an arithmetic number, because the mean of its divisors is an integer number (553194720).

Almost surely, 2^13400215605 is an apocalyptic number.

13400215605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13400215605 is a deficient number, since it is larger than the sum of its proper divisors (13153130955).

13400215605 is a wasteful number, since it uses less digits than its factorization.

13400215605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13090 (or 13087 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The spelling of 13400215605 in words is "thirteen billion, four hundred million, two hundred fifteen thousand, six hundred five".