518265664545 has 16 divisors (see below), whose sum is σ = 829238215680. Its totient is φ = 276403970304.

The previous prime is 518265664529. The next prime is 518265664573. The reversal of 518265664545 is 545466562815.

It is not a de Polignac number, because 518265664545 - 2⁴ = 518265664529 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 852672 + ... + 1327998.

It is an arithmetic number, because the mean of its divisors is an integer number (51827388480).

Almost surely, 2^518265664545 is an apocalyptic number.

It is an amenable number.

518265664545 is a deficient number, since it is larger than the sum of its proper divisors (310972551135).

518265664545 is a wasteful number, since it uses less digits than its factorization.

518265664545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548024.

The product of its digits is 34560000, while the sum is 57.

The spelling of 518265664545 in words is "five hundred eighteen billion, two hundred sixty-five million, six hundred sixty-four thousand, five hundred forty-five".