13154245215505 has 16 divisors (see below), whose sum is σ = 15897224286720. Its totient is φ = 10448893253952.

The previous prime is 13154245215497. The next prime is 13154245215563. The reversal of 13154245215505 is 50551254245131.

13154245215505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 13154245215505 - 2³ = 13154245215497 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15231589 + ... + 16072018.

It is an arithmetic number, because the mean of its divisors is an integer number (993576517920).

Almost surely, 2^{13154245215505} is an apocalyptic number.

It is an amenable number.

13154245215505 is a deficient number, since it is larger than the sum of its proper divisors (2742979071215).

13154245215505 is a wasteful number, since it uses less digits than its factorization.

13154245215505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31304208.

The product of its (nonzero) digits is 600000, while the sum is 43.

The spelling of 13154245215505 in words is "thirteen trillion, one hundred fifty-four billion, two hundred forty-five million, two hundred fifteen thousand, five hundred five".