13405503545205 has 32 divisors (see below), whose sum is σ = 21815069644800. Its totient is φ = 7027544177472.

The previous prime is 13405503545183. The next prime is 13405503545407. The reversal of 13405503545205 is 50254530550431.

It is not a de Polignac number, because 13405503545205 - 2³² = 13401208577909 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6172392 + ... + 8056638.

It is an arithmetic number, because the mean of its divisors is an integer number (681720926400).

Almost surely, 2^{13405503545205} is an apocalyptic number.

13405503545205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13405503545205 is a deficient number, since it is larger than the sum of its proper divisors (8409566099595).

13405503545205 is a wasteful number, since it uses less digits than its factorization.

13405503545205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1892353.

The product of its (nonzero) digits is 900000, while the sum is 42.

The spelling of 13405503545205 in words is "thirteen trillion, four hundred five billion, five hundred three million, five hundred forty-five thousand, two hundred five".