13405535355545 has 8 divisors (see below), whose sum is σ = 16086821871624. Its totient is φ = 10724308654464.

The previous prime is 13405535355493. The next prime is 13405535355557. The reversal of 13405535355545 is 54555353550431.

It can be written as a sum of positive squares in 4 ways, for example, as 6746678968969 + 6658856386576 = 2597437^2 + 2580476^2 .

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 13405535355545 - 2⁶ = 13405535355481 is a prime.

It is a Duffinian number.

It is a Curzon 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 7 ways as a sum of consecutive naturals, for example, 14459204 + ... + 15358373.

It is an arithmetic number, because the mean of its divisors is an integer number (2010852733953).

Almost surely, 2^{13405535355545} is an apocalyptic number.

It is an amenable number.

13405535355545 is a deficient number, since it is larger than the sum of its proper divisors (2681286516079).

13405535355545 is an equidigital number, since it uses as much as digits as its factorization.

13405535355545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29907499.

The product of its (nonzero) digits is 33750000, while the sum is 53.

The spelling of 13405535355545 in words is "thirteen trillion, four hundred five billion, five hundred thirty-five million, three hundred fifty-five thousand, five hundred forty-five".