65105574842 has 64 divisors (see below), whose sum is σ = 123082391808. Its totient is φ = 25299648000.

The previous prime is 65105574839. The next prime is 65105574893. The reversal of 65105574842 is 24847550156.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7467878 + ... + 7476590.

It is an arithmetic number, because the mean of its divisors is an integer number (1923162372).

Almost surely, 2^65105574842 is an apocalyptic number.

65105574842 is a deficient number, since it is larger than the sum of its proper divisors (57976816966).

65105574842 is a wasteful number, since it uses less digits than its factorization.

65105574842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9156 (or 9134 counting only the distinct ones).

The product of its (nonzero) digits is 1344000, while the sum is 47.

The spelling of 65105574842 in words is "sixty-five billion, one hundred five million, five hundred seventy-four thousand, eight hundred forty-two".