65540042605050 has 96 divisors (see below), whose sum is σ = 175066322663232. Its totient is φ = 16130722183680.

The previous prime is 65540042605007. The next prime is 65540042605069. The reversal of 65540042605050 is 5050624004556.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 65540042604993 and 65540042605011.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11948782 + ... + 16548518.

It is an arithmetic number, because the mean of its divisors is an integer number (1823607527742).

Almost surely, 2^{65540042605050} is an apocalyptic number.

65540042605050 is an abundant number, since it is smaller than the sum of its proper divisors (109526280058182).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65540042605050 is a wasteful number, since it uses less digits than its factorization.

65540042605050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4607072 (or 4607067 counting only the distinct ones).

The product of its (nonzero) digits is 720000, while the sum is 42.

The spelling of 65540042605050 in words is "sixty-five trillion, five hundred forty billion, forty-two million, six hundred five thousand, fifty".